#help-0 | Mathematics | Page 804

alpine sable Sep 17, 2021, 4:18 PM

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I hope so

mortal void Sep 17, 2021, 4:19 PM

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okay can i ask

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cause i see a question above so asking

alpine sable Sep 17, 2021, 4:19 PM

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well usually if theres no activity after a while

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like 10 mins or so

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you may ask

mortal void Sep 17, 2021, 4:20 PM

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okay wait

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can you help me with it

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and above there its simplify which got a y^3 mistakenly

alpine sable Sep 17, 2021, 4:22 PM

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mortal void

Apply perfect cube forula

mortal void Sep 17, 2021, 4:22 PM

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<@&268886789983436800> help here

alpine sable Sep 17, 2021, 4:23 PM

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or the binomial theorem

mortal void Sep 17, 2021, 4:23 PM

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ban this guy

meager remnant Sep 17, 2021, 4:23 PM

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mortal void and above there its simplify which got a y^3 mistakenly

symbolab

alpine sable Sep 17, 2021, 4:23 PM

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not interested

mortal void Sep 17, 2021, 4:23 PM

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alpine sable Apply perfect cube forula

can you please tell whats it?

tame falcon Sep 17, 2021, 4:23 PM

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@median escarp Knock it off

alpine sable Sep 17, 2021, 4:24 PM

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just ban him already

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he multiposted that thing

alpine sable Sep 17, 2021, 4:24 PM

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mortal void can you please tell whats it?

Special case

mortal void Sep 17, 2021, 4:24 PM

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alpine sable Special case

actually i have tried it so many times and i still got no idea how i can solve this question

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okay i should google that formula

alpine sable Sep 17, 2021, 4:25 PM

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I don't really get the hint

mortal void Sep 17, 2021, 4:25 PM

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mortal void can you please tell whats it?

well i did so many attempts but im still not able to solve it!

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$(a-b)^3=a^3-b^3-3ab(a-b)$

ocean sealBOT Sep 17, 2021, 4:27 PM

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EiVE D⚡

mortal void Sep 17, 2021, 4:27 PM

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i tried but im getting stuck if using that hint also if doesnt applying the hint

alpine sable Sep 17, 2021, 4:28 PM

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as said i don't really see how letting a=7x+5y, and b=7x-5y such that a-b=10y

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maybe i'm missing something

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I just can't see what it is

mortal void Sep 17, 2021, 4:29 PM

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i see

alpine sable Sep 17, 2021, 4:29 PM

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All I see is special cases, and the binomial expansion (theorem)

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$(a-b)^3=a^3-3a^2b+3ab^2-b^3$

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oh wait

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bruh

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wrong formula

ocean sealBOT Sep 17, 2021, 4:31 PM

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mortal void Sep 17, 2021, 4:31 PM

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alpine sable wrong formula

no thats right ig

alpine sable Sep 17, 2021, 4:32 PM

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3ab²-3a²b = 3ab(a-b), so it was right

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** i forgot a minus

mortal void Sep 17, 2021, 4:32 PM

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cause there both $(a+b)^3 and (a-b)^3$ are present

ocean sealBOT Sep 17, 2021, 4:32 PM

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EiVE D⚡

alpine sable Sep 17, 2021, 4:32 PM

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I was thinking of difference of perfect cubes

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not the perfect cube formula

mortal void Sep 17, 2021, 4:33 PM

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alpine sable 3ab²-3a²b = 3ab(a-b), so it was right

is it related to some other question

mortal void Sep 17, 2021, 4:33 PM

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alpine sable I was thinking of difference of perfect cubes

bearlain

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should i give you some pictures of the attempts i did to solve this question

alpine sable Sep 17, 2021, 4:34 PM

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ocean seal

(a+b)^3 would just be equal to the expanded on the RHS but all positive (ofc)

uncut jackal Sep 17, 2021, 4:35 PM

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is it allowed to pay someone to explain me what to do?

alpine sable Sep 17, 2021, 4:36 PM

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uncut jackal is it allowed to pay someone to explain me what to do?

no

ocean sealBOT Sep 17, 2021, 4:36 PM

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mortal void Sep 17, 2021, 4:36 PM

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uncut jackal is it allowed to pay someone to explain me what to do?

who knows but yes if money comes then they can even become your teacher lol

alpine sable Sep 17, 2021, 4:36 PM

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Just ask your question

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you'll get your answer

alpine sable Sep 17, 2021, 4:37 PM

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ocean seal

@mortal void binomial theorem defined in summation notation

uncut jackal Sep 17, 2021, 4:37 PM

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my question is a long mathematical question, im pretty sure no one normal in his mind is about to do it for free

alpine sable Sep 17, 2021, 4:37 PM

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uncut jackal my question is a long mathematical question, im pretty sure no one normal in his...

some questions go on for days or weeks

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¯_(ツ)_/¯

mortal void Sep 17, 2021, 4:37 PM

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alpine sable <@!826862665024536646> binomial theorem defined in summation notation

would you laugh if i say i dont know how to apply this formula?

alpine sable Sep 17, 2021, 4:37 PM

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mortal void would you laugh if i say i dont know how to apply this formula?

no

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why would i?

mortal void Sep 17, 2021, 4:37 PM

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thankyou sir

alpine sable Sep 17, 2021, 4:37 PM

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Teachers would be laughing at their students now

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if that makes sense

mortal void Sep 17, 2021, 4:38 PM

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alpine sable Teachers would be laughing at their students now

no

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but i assume i am not supposed to apply this formula cause it wasn't on the chapter\

uncut jackal Sep 17, 2021, 4:38 PM

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ill just get to the point im stuck and send it over

mortal void Sep 17, 2021, 4:38 PM

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still i am gonna try learning it

craggy token Sep 17, 2021, 4:39 PM

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So someone knows some platform to start math studies?

mortal void Sep 17, 2021, 4:39 PM

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thankyou @alpine sable

alpine sable Sep 17, 2021, 4:39 PM

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ok but about your question

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wanna continue it?

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Cause i don't get the hint it provides at all

mortal void Sep 17, 2021, 4:39 PM

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craggy token So someone knows some platform to start math studies?

khan academy

alpine sable Sep 17, 2021, 4:39 PM

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craggy token So someone knows some platform to start math studies?

wanna do courses?

mortal void Sep 17, 2021, 4:39 PM

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alpine sable Cause i don't get the hint it provides at all

if asking to me then yes

craggy token Sep 17, 2021, 4:39 PM

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mortal void khan academy

Thanks bro

alpine sable Sep 17, 2021, 4:39 PM

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Khan academy is good but probably find your syllabus

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and follow it

mortal void Sep 17, 2021, 4:40 PM

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alpine sable wanna do courses?

are there some other?

alpine sable Sep 17, 2021, 4:40 PM

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mortal void are there some other?

most likely

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but idk in general use the internet

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I prefer books tbf

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if you don't want hardcopies you could get softcopies

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if you don't wanna buy 'em pirate 'em

mortal void Sep 17, 2021, 4:40 PM

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yeah XD

craggy token Sep 17, 2021, 4:41 PM

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Tell me some books, or doesn't matter?

mortal void Sep 17, 2021, 4:41 PM

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i never did it, when i cover my course will try

mortal void Sep 17, 2021, 4:41 PM

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craggy token Tell me some books, or doesn't matter?

yeah it would be helpful for me aswell though there are some books they have mentioned check #books-old #book-recommendations

junior glacier Sep 17, 2021, 4:42 PM

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Could someone help me with my math please dm me privately i have a few more questions

craggy token Sep 17, 2021, 4:42 PM

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mortal void yeah it would be helpful for me aswell though there are some books they have men...

Thank you so much!!!

mortal void Sep 17, 2021, 4:43 PM

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craggy token Thank you so much!!!

cat_wink

tight locust Sep 17, 2021, 4:43 PM

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junior glacier Could someone help me with my math please dm me privately i have a few more ques...

find the diagonal and then solve for the side

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Lol!

alpine sable Sep 17, 2021, 4:44 PM

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craggy token Tell me some books, or doesn't matter?

Depends on the course

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what you wanna do

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rn I got some high school math book teachers provided

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and some books i bought

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which follow the same stuff

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except further mathematics

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and then I have my own books for self studies

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Set Theory, Infinitesimal Calculus, Analytic Trigonometry, and so on

craggy token Sep 17, 2021, 4:45 PM

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I'm a beginner, super beginner

alpine sable Sep 17, 2021, 4:45 PM

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So you had never ever done maths?

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So lets say you're idk 17 you dunno the bare bare basics?

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Like arithmetic?

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or algebra?

uncut jackal Sep 17, 2021, 4:47 PM

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Do someone knows where is my mistake?

craggy token Sep 17, 2021, 4:47 PM

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alpine sable or algebra?

I know the basics, but I phase of my life, I just stopped to study

alpine sable Sep 17, 2021, 4:47 PM

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like absolutely stopped studying?

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so do you go to school?

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Do you get a formal education?

uncut jackal Sep 17, 2021, 4:47 PM

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btw its a root function with parameter

alpine sable Sep 17, 2021, 4:47 PM

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@mortal void

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are you doing your question?

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sorry I couldn't really help much

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but the 2 things i gave to you

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you could implement

ocean sealBOT Sep 17, 2021, 4:49 PM

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alpine sable Sep 17, 2021, 4:49 PM

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Not really a quintic function, but the highest degree is 5

craggy token Sep 17, 2021, 4:49 PM

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alpine sable so do you go to school?

Im cheated in school

alpine sable Sep 17, 2021, 4:51 PM

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craggy token Im cheated in school

wdym

craggy token Sep 17, 2021, 4:53 PM

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alpine sable wdym

Professor tested, and I just answer with my friends answer, im sorry cuz i no very well with english

mortal void Sep 17, 2021, 4:53 PM

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alpine sable Not really a quintic function, but the highest degree is 5

Thankyou

alpine sable Sep 17, 2021, 4:54 PM

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craggy token Professor tested, and I just answer with my friends answer, im sorry cuz i no ve...

no worries

topaz sierra Sep 17, 2021, 4:56 PM

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I want to do an internal assessment regarding modelling gdp if yugoslavia was reunited

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and i was wondering if the solow-swan model is a good model to use for this?

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or if there are better models to use when modelling gdp if countries were combined

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because i read that the solow-swan model is more for long-run economic growth which could be useful in my case but idk

alpine sable Sep 17, 2021, 5:05 PM

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wdym?

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I was responding to the i don't speak english bit

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afk

winter linden Sep 17, 2021, 5:11 PM

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Im stuck here

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Pls help

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Need to prove rhs

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<@&286206848099549185>

uncut tapir Sep 17, 2021, 5:17 PM

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(1-x)^2 ≠ 1^2 - x^2

woven echo Sep 17, 2021, 5:18 PM

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yea u didn't distribute correctly

winter linden Sep 17, 2021, 5:20 PM

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uncut tapir (1-x)^2 ≠ 1^2 - x^2

Wait what how

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Oh wait

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Use the identity?

uncut tapir Sep 17, 2021, 5:20 PM

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That's not an identity

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It actually means the opposite

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They are not equal but in your work you've assumed them to be equal

winter linden Sep 17, 2021, 5:22 PM

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What

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.

rigid wind Sep 17, 2021, 5:23 PM

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(1-x)^2 is not equal to 1^2 - x^2

winter linden Sep 17, 2021, 5:23 PM

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Yeah?

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What its then

woven echo Sep 17, 2021, 5:23 PM

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distribute them fam

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write out the actual terms multiplied together if it helps

uncut tapir Sep 17, 2021, 5:24 PM

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In your working out you have a (1-cos)^2 and you wrote that equals 1-cos^2 that's the point I'm making

winter linden Sep 17, 2021, 5:24 PM

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Isn't it doe? 🙃

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What is it then

woven echo Sep 17, 2021, 5:24 PM

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(1-cos) * (1-cos)

winter linden Sep 17, 2021, 5:25 PM

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woven echo (1-cos) * (1-cos)

Oh

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Ok

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Ok ok guys i got now@woven echo @uncut tapir

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Thanks

woven echo Sep 17, 2021, 5:34 PM

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np good job

winged walrus Sep 17, 2021, 5:45 PM

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umm

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can someone explain epsilon-delta limit definition to me?

buoyant ivy Sep 17, 2021, 5:46 PM

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umm

woven echo Sep 17, 2021, 5:46 PM

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big umm

winged walrus Sep 17, 2021, 5:46 PM

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i tried watching in yt but my head cant follow

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soynoo

woven echo Sep 17, 2021, 5:48 PM

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i feel like khan academy's explanation is p good i dont trust myself to try

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lol

winged walrus Sep 17, 2021, 5:49 PM

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i guess i need to shift to another course before the maths kill me

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opencry

gray gorge Sep 17, 2021, 5:50 PM

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What course are you in now

winged walrus Sep 17, 2021, 5:50 PM

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bs chem :>

gray gorge Sep 17, 2021, 5:51 PM

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Don't think you'll need a lot of $\varepsilon-\delta$ in your further career then

ocean sealBOT Sep 17, 2021, 5:51 PM

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(R / I) / (J / I)

winged walrus Sep 17, 2021, 5:52 PM

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nozoomi

runic canopy Sep 17, 2021, 5:57 PM

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What does it mean when it says x=a?

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This is my work, if you guys can’t understand it, plz say

woven echo Sep 17, 2021, 6:00 PM

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unless a is defined somewhere i believe you just insert a for x

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but someone smarter than me might know better

runic canopy Sep 17, 2021, 6:01 PM

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I was thinking the same thing

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But idk if it was going to be that simple

woven echo Sep 17, 2021, 6:01 PM

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ikr that always throws me off too lol

runic canopy Sep 17, 2021, 6:02 PM

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Lol yea so it would look like this then 😂

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;-; i am still waiting for mine to be answered

stiff lance Sep 17, 2021, 6:07 PM

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Oh, sorry sorry

runic canopy Sep 17, 2021, 6:08 PM

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Np 🙂

obsidian hawk Sep 17, 2021, 6:12 PM

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can anyone help me find x

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for this trigonometry hw

runic canopy Sep 17, 2021, 6:15 PM

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runic canopy What does it mean when it says x=a?

<@&286206848099549185>

astral dagger Sep 17, 2021, 6:20 PM

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runic canopy What does it mean when it says x=a?

it's just the general form of the slope of the curve at a point x = a

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after you find it, just sub x with a

undone dock Sep 17, 2021, 6:25 PM

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obsidian hawk

Find the length of the base of the larger right triangle and subtract off the base of the smaller right triangle

meager remnant Sep 17, 2021, 6:37 PM

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Help :c

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says: the volume of the solid bounded by the surface is given by :

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:c

alpine sable Sep 17, 2021, 7:10 PM

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obsidian hawk

Still need help?

obsidian hawk Sep 17, 2021, 7:10 PM

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yeah

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on this one

alpine sable Sep 17, 2021, 7:10 PM

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ok this an orthogonal triangle?

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Could we apply our goniometric ratios here?

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or the pythagorean theorem?

alpine sable Sep 17, 2021, 7:11 PM

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obsidian hawk

Cause this looks like one

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but I don't want to assume

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anyways you've been taught the laws of sines and cosines right?

obsidian hawk Sep 17, 2021, 7:12 PM

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yeah

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i just got it

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311.0976

valid vessel Sep 17, 2021, 7:31 PM

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reduce this differential equation in separable form and then solve???

vague coral Sep 17, 2021, 7:32 PM

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that differential equation looks ugly

valid vessel Sep 17, 2021, 7:33 PM

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vague coral that differential equation looks ugly

you can clearly read that!

vague coral Sep 17, 2021, 7:33 PM

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That wasnt my point

valid vessel Sep 17, 2021, 7:34 PM

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vague coral That wasnt my point

ohh got you now. any solution?

vague coral Sep 17, 2021, 7:38 PM

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Hmmm, try to get something like :
y' e^y = something

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and integrate

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@valid vessel

final coyote Sep 17, 2021, 7:42 PM

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What is geometry

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What is a transversal

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Some of these questions confuse me and cause me panic attacks

mellow frigate Sep 17, 2021, 7:43 PM

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can anyone please help with the C part??

vague coral Sep 17, 2021, 7:43 PM

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final coyote What is geometry

https://en.m.wikipedia.org/wiki/Geometry

Geometry

Geometry (from the Ancient Greek: γεωμετρία; geo- "earth", -metron "measurement") is, with arithmetic, one of the oldest branches of mathematics. It is concerned with properties of space that are related with distance, shape, size, and relative position of figures. A mathematician who works in the field of geometry is called a geometer.
Until th...

final coyote Sep 17, 2021, 7:43 PM

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aubrey_ofcourse

vague coral Sep 17, 2021, 7:44 PM

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mellow frigate can anyone please help with the C part??

what is the condition for f(x)=0 to have real roots to begin with

mellow frigate Sep 17, 2021, 7:44 PM

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vague coral what is the condition for f(x)=0 to have real roots to begin with

the discriminant should be greater than 0

vague coral Sep 17, 2021, 7:46 PM

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use this information

mellow frigate Sep 17, 2021, 7:46 PM

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but the discriminant is less than 0

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thats the problem @vague coral

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am getting k^2 + 9 +2k when substituting in b^2-4ac

vague coral Sep 17, 2021, 7:47 PM

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do you know the sign of k ?

mellow frigate Sep 17, 2021, 7:47 PM

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no

vague coral Sep 17, 2021, 7:48 PM

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find the discriminant of the discriminant such as k^2 + 2k + 9 is positive

alpine sable Sep 17, 2021, 7:49 PM

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Whenever anyone gets the chance can u help me out in #help-5

mellow frigate Sep 17, 2021, 7:49 PM

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vague coral find the discriminant of the discriminant such as k^2 + 2k + 9 is positive

so i should find the discriminant of k^2 +2k+9 till the roots are positive?

vague coral Sep 17, 2021, 7:50 PM

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find the discriminant of k^2 + 2k + 9

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youll see something that will help you

mellow frigate Sep 17, 2021, 7:51 PM

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vague coral find the discriminant of k^2 + 2k + 9

its -32 but i dont get it

vague coral Sep 17, 2021, 7:53 PM

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the discriminant is negative, that means that k^2 + 2k + 9 has no real roots

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and that means the sign of k^2 + 2k + 9 is the sign of the coefficient of k^2

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it said in the lesson about quadratic

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learn your lessons 🗿

mellow frigate Sep 17, 2021, 7:56 PM

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so basically since the discriminant of the discriminant has no real roots, K would be positive. since K is positive f(x) has real roots?

vague coral Sep 17, 2021, 7:56 PM

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the discriminant of the first discriminant is negative, thats why that first discriminant has the sign of the coefficient of k^2

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so our discriminant is positive

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then f(x)=0 has two real roots

mellow frigate Sep 17, 2021, 7:57 PM

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i see

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thanks

chrome plinth Sep 17, 2021, 8:01 PM

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how

real minnow Sep 17, 2021, 8:07 PM

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how

woven echo Sep 17, 2021, 8:07 PM

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180-132

jolly stone Sep 17, 2021, 8:07 PM

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chrome plinth how

assuming HMK is straight line, you can find angle KML

real minnow Sep 17, 2021, 8:07 PM

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woven echo 180-132

how

woven echo Sep 17, 2021, 8:08 PM

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thats the supplementary angle for KML or whatever

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then that angle + JMK

kindred hull Sep 17, 2021, 8:09 PM

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real minnow how

Base x height

real minnow Sep 17, 2021, 8:09 PM

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kindred hull Base x height

yes

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ik

woven echo Sep 17, 2021, 8:09 PM

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it's just a single degree less than 90

kindred hull Sep 17, 2021, 8:09 PM

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So what u mean how

real minnow Sep 17, 2021, 8:09 PM

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kindred hull So what u mean how

i need dat anwser

kindred hull Sep 17, 2021, 8:10 PM

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What is ur question can u clarify

woven echo Sep 17, 2021, 8:10 PM

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o my bad lol i was answering the other guy confused you two

real minnow Sep 17, 2021, 8:10 PM

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real minnow how

^^

kindred hull Sep 17, 2021, 8:10 PM

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Bro

real minnow Sep 17, 2021, 8:10 PM

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e

kindred hull Sep 17, 2021, 8:10 PM

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Do you mean why?

real minnow Sep 17, 2021, 8:10 PM

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what

kindred hull Sep 17, 2021, 8:11 PM

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U asked “how” and I told you how

woven echo Sep 17, 2021, 8:11 PM

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whats ur base and whats ur height fam

kindred hull Sep 17, 2021, 8:11 PM

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It’s in the pic he posted

woven echo Sep 17, 2021, 8:11 PM

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no i know

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i'm just prodding him

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lol sry

chrome plinth Sep 17, 2021, 8:12 PM

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thx

woven echo Sep 17, 2021, 8:12 PM

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np

winged walrus Sep 17, 2021, 8:13 PM

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please help

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:>

kindred hull Sep 17, 2021, 8:13 PM

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woven echo np

I think he was asking why not how

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But someone explained it to him in another channel

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So it’s aight

woven echo Sep 17, 2021, 8:19 PM

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winged walrus

set the difference quotient up by plugging x+h in g(x), and subtracting g(x) and then simplify it and eventually plug 0 in for h

flint compass Sep 17, 2021, 8:24 PM

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Hello, I'm new to this server.
I'm looking on some help with starting off on differential equations
Could you explain how I would draw a direction field given
Y'=3-2y

I looked at multiple Youtube videos and they all contained X in their equations however I do not have X, unless I solve the derivative- yet I am expected to not solve anything and be able to get the direction field off what was given. Not sure how to do that.

Do I have to get to
-1/2ln(|3-2y|)=x+C
to get the correct answer?

woven echo Sep 17, 2021, 8:29 PM

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honestly idk i'd assume u just gotta plug in the y to get the slope

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and like any x for that y will be the same slope

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so like (0, 1) is gonna have a slope of 1, and (1, 1) is gonna have a slope of 1

alpine sable Sep 17, 2021, 8:29 PM

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anyone wanna help me out on some algebra homework

woven echo Sep 17, 2021, 8:30 PM

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but my understanding is super shaky

flint compass Sep 17, 2021, 8:30 PM

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woven echo so like (0, 1) is gonna have a slope of 1, and (1, 1) is gonna have a slope of 1

Interesting, but how can you plug in x=anything if x is null?

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Like, my equation is (y) 😦

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Would one of the Helpers know Diff Equations?

woven echo Sep 17, 2021, 8:31 PM

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someone would deeeefinitely know it better than me

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lmao

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sry i can't help more

flint compass Sep 17, 2021, 8:32 PM

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I know I'm not supposed to @ them for 15 mins xD

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Hey man, no problem

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Glad I'm not the only person confused about this question! Haha

woven echo Sep 17, 2021, 8:32 PM

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lol

flint compass Sep 17, 2021, 8:32 PM

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Quit takin' my X's teacher!

noble bolt Sep 17, 2021, 8:32 PM

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Substitute Y' with dy/dx

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There you got an x 👍

flint compass Sep 17, 2021, 8:33 PM

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Hmmmmm alright. Lemme see if I can figure it out for a bit from there.
Is it okay if I @ you if I still can't figure it out?

noble bolt Sep 17, 2021, 8:33 PM

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Of course

flint compass Sep 17, 2021, 8:34 PM

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Thanks man! Means a ton- my knowledge is a bit rough because of online classes 🤣

noble bolt Sep 17, 2021, 8:34 PM

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Np m8

alpine sable Sep 17, 2021, 8:35 PM

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Hey math Gods

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Can someone help me. How they reached that inequality with induction?

regal oar Sep 17, 2021, 8:46 PM

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does anyone know calculus?

magic geyser Sep 17, 2021, 8:46 PM

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no

sage jacinth Sep 17, 2021, 8:50 PM

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regal oar does anyone know calculus?

no, nobody in this math server knows calculus

woven echo Sep 17, 2021, 8:50 PM

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the calculus channel is an illusion

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dont let it fool u

noble bolt Sep 17, 2021, 8:51 PM

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What is a calculas?

woven echo Sep 17, 2021, 8:52 PM

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legolas's brother

placid zinc Sep 17, 2021, 8:52 PM

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@flint compass
So -1/2ln(... is the solution to the DE.

You're not asked for a solution, but you are asked for a direction field. That is, you want to draw a picture of the direction of y'.

For example, at the point (2,3), y' = 0, so that point gets a flat arrow

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Here's an example of one

flint compass Sep 17, 2021, 8:53 PM

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Could you explain how you plug (2,3) into the equation?

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Do you convert Y' into dy/dx?

placid zinc Sep 17, 2021, 8:54 PM

#

(2,3) means x = 2, y = 3, in y' = 3 - 2y
There's no x, so you're just disregarding that first point.

#

y' and dy/dx are the same thing

woven echo Sep 17, 2021, 8:54 PM

#

damn so was i actually right

flint compass Sep 17, 2021, 8:54 PM

#

Dude, there's no way it's that simple
I think you nailed it, @woven echo

#

So the value of X doesn't matter since it's null @placid zinc?

placid zinc Sep 17, 2021, 8:55 PM

#

There's no x, so when you "plug in x" nothing changes.

flint compass Sep 17, 2021, 8:56 PM

#

Alright I understand, could you explain one more thing?

#

If there is no X then how is there a Left/right to the graph?

woven echo Sep 17, 2021, 8:57 PM

#

it's still there it's just not part of the equation for the slope i guess

placid zinc Sep 17, 2021, 8:57 PM

#

x still exists.
But there just happens to not be one in the equation.

flint compass Sep 17, 2021, 8:57 PM

#

Makes sense, but how do plot it on the graph?

#

I mean I have the picture

#

But like, how did you get there?

placid zinc Sep 17, 2021, 8:58 PM

#

That's not the same as your function

#

Just an example I pulled off Google

flint compass Sep 17, 2021, 8:58 PM

#

Ohh

#

Okay

alpine sable Sep 17, 2021, 8:58 PM

#

help

flint compass Sep 17, 2021, 8:58 PM

#

How would one graph it then?

placid zinc Sep 17, 2021, 8:58 PM

#

For example, at the point (2,3), y' = 0, so that point gets a flat arrow

woven echo Sep 17, 2021, 8:59 PM

#

you take the (x,y) coordinate and plug it in to that equation

#

so at that specific coordinate that will be the slope

flint compass Sep 17, 2021, 8:59 PM

#

YO, that makes so much sense

woven echo Sep 17, 2021, 8:59 PM

#

but it only actually uses the y in the equation

flint compass Sep 17, 2021, 8:59 PM

#

Okayy

#

So I plot the point, then plug that point into the equation so I get the slope!

#

Interesting

woven echo Sep 17, 2021, 8:59 PM

#

yeah and to draw the directional field just draw the slope for that point like in that example

#

a little line

flint compass Sep 17, 2021, 9:00 PM

#

So what would y'=1 do to the arrow? Full vertical arrow?

woven echo Sep 17, 2021, 9:00 PM

#

it would be a 45 degree angle i think or whatever

#

slope of 1

#

at every single point

flint compass Sep 17, 2021, 9:00 PM

#

Oh right...

#

Man highschool was so long ago I forgot

#

It'd be pointing towards up one, right one- right?

woven echo Sep 17, 2021, 9:01 PM

#

haha it happens i got some gaps in my understanding for sure

#

yea exactly

flint compass Sep 17, 2021, 9:02 PM

#

Awesome, I think I fully understand it now!

#

Thanks y'all

woven echo Sep 17, 2021, 9:02 PM

#

so in this particular one, you can imagine it's always "over 1"

#

when its just a whole number

flint compass Sep 17, 2021, 9:03 PM

#

Hmm, does this graph look right to you?

#

#

I ran it through a calculator so I could check my answer

woven echo Sep 17, 2021, 9:04 PM

#

i believe so yea

flint compass Sep 17, 2021, 9:04 PM

#

Awesome, thanks a ton! ^.^

woven echo Sep 17, 2021, 9:05 PM

#

np man

placid zinc Sep 17, 2021, 9:12 PM

#

~~For example, at the point (2,3), y' = 0, so that point gets a flat arrow@flint compass~~

#

It doesn't match up with that picture

woven echo Sep 17, 2021, 9:13 PM

#

well its 3 - 2y right

#

wouldn't it equal 0 at 1.5

placid zinc Sep 17, 2021, 9:15 PM

#

Oh wow that's embarrassing haha. Yep, good call

#

Ignore the ping

woven echo Sep 17, 2021, 9:16 PM

#

teamwork 😤

#

haha

alpine sable Sep 17, 2021, 9:24 PM

#

penis cock

#

https://tenor.com/view/invincible-omni-man-punching-gif-21625389

Tenor

sly mantle Sep 17, 2021, 9:36 PM

#

@alpine sable next shitpost & you're out

uncut jackal Sep 17, 2021, 9:36 PM

#

help me im stuck

astral dagger Sep 17, 2021, 9:39 PM

#

uncut jackal help me im stuck

pepenoted which part, exactly?

vapid herald Sep 17, 2021, 9:57 PM

#

could I get some help with this

#

#

x dot and theta dot represent the derivative with respect to time

unkempt sail Sep 17, 2021, 9:59 PM

#

alpine sable help

y is 0

vapid herald Sep 17, 2021, 10:02 PM

#

<@&286206848099549185>

royal ermine Sep 17, 2021, 10:22 PM

#

I need help with this problem

uncut jackal Sep 17, 2021, 10:23 PM

#

I'm in doubt if the helpers can actually manage to help with that 😂

royal ermine Sep 17, 2021, 10:23 PM

#

Why

uncut jackal Sep 17, 2021, 10:23 PM

#

Thas a god damn aerospace engineering

royal ermine Sep 17, 2021, 10:24 PM

#

Bruh

cinder finch Sep 17, 2021, 10:29 PM

#

alpine sable help

Here, This Should Solve Your Question...

You Use The Second Equation To Determine The Value For "Y," Then For X. After You Find X From The Y Value; You Substitute That To Find The Y Value From Inverse Operation.

Desktop_Screenshot_2021.09.17_-_18.25.35.59_2.png

alpine sable Sep 17, 2021, 10:31 PM

#

cinder finch Here, This Should Solve Your Question... You Use The Second Equation To Determi...

thankyou

cinder finch Sep 17, 2021, 10:31 PM

#

I'm Assuming The Question Wants You To Round To The Nearest Whole

ancient saddle Sep 17, 2021, 10:32 PM

#

vapid herald

Hello, is the origin of the reference system always at the point where the wheel touches the floor?

royal ermine Sep 17, 2021, 10:33 PM

#

<@&286206848099549185> need help please

#

check above

vapid herald Sep 17, 2021, 10:33 PM

#

ancient saddle Hello, is the origin of the reference system always at the point where the wheel...

hello, I assume so due to the {e^1, e^2} pos

#

I am pretty sure I already have position, I have Pcos(theta) - Psin(theta), x = Rcos(theta)-x(center of mass) y = -Rsin(theta) + y(center of mass)

ancient saddle Sep 17, 2021, 10:36 PM

#

vapid herald I am pretty sure I already have position, I have Pcos(theta) - Psin(theta), x = ...

yes, that's correct

#

consider that the center of mass is (0,R)

#

then just take the derivative with respect to time

vapid herald Sep 17, 2021, 10:37 PM

#

of just the simple Pcos(theta) - Psin(theta) ?

#

or would it be V = x dot so being x = Rcos(theta) - x(center of mass)

#

@ancient saddle

ancient saddle Sep 17, 2021, 10:43 PM

#

vapid herald or would it be V = x dot so being x = Rcos(theta) - x(center of mass)

This one

vapid herald Sep 17, 2021, 10:44 PM

#

okay that makes sense okay let me compute that real quick

dreamy burrow Sep 17, 2021, 10:44 PM

#

hello were do i find Geomatry

#

Geometry

vapid herald Sep 17, 2021, 10:44 PM

#

just post questions in any free channel

dreamy burrow Sep 17, 2021, 10:44 PM

#

ok

#

cause i need help with my work badly

#

lmao

#

im stupid asf

#

#

i need help with this

vapid herald Sep 17, 2021, 10:45 PM

#

post in a free channel below

dreamy burrow Sep 17, 2021, 10:45 PM

#

oh alr

vapid herald Sep 17, 2021, 10:46 PM

#

ancient saddle This one

so simply x dot = R dot cos(theta) - Rsin(theta) - xdot(com)

alpine sable Sep 17, 2021, 10:49 PM

#

When this room is available plz at me

vapid herald Sep 17, 2021, 10:55 PM

#

@ancient saddle would I add angular velocity to this

#

or is that just 0

tame moss Sep 17, 2021, 11:10 PM

#

#

what's the correct next step to simplify the denominator?

golden nymph Sep 17, 2021, 11:10 PM

#

Omg

#

Evil integrals

vapid herald Sep 17, 2021, 11:10 PM

#

ancient saddle This one

actually R is just a scalar

#

so its just

#

-Rsin(theta) - xdot(com)

#

right

golden nymph Sep 17, 2021, 11:11 PM

#

Sht I forgot how to do them

#

Oh right

#

You should’ve taken the 3 common factor

#

Before the sub

#

So it would be

#

$(\frac{x}{\sqrt{3}})^2-1$

ocean sealBOT Sep 17, 2021, 11:12 PM

#

ZozzDude

golden nymph Sep 17, 2021, 11:12 PM

#

So your sub was wrong

tame moss Sep 17, 2021, 11:12 PM

#

$$x = \sqrt{3} \sec{\theta}$$

ocean sealBOT Sep 17, 2021, 11:12 PM

#

Ziggy

golden nymph Sep 17, 2021, 11:13 PM

#

Yupp

slender marten Sep 17, 2021, 11:13 PM

#

Why not just use u = x^2 - 3?

tame moss Sep 17, 2021, 11:13 PM

#

I'm required to do trig sub

tame moss Sep 17, 2021, 11:14 PM

#

golden nymph $(\frac{x}{\sqrt{3}})^2-1$

but why do the fraction with x?

rapid verge Sep 17, 2021, 11:14 PM

#

\

Screen_Shot_2021-09-18_at_9.14.14_am.png

#

what is the gradient?

junior ore Sep 17, 2021, 11:14 PM

#

rapid verge what is the gradient?

use gradient formula

golden nymph Sep 17, 2021, 11:14 PM

#

tame moss but why do the fraction with x?

Wat?

rapid verge Sep 17, 2021, 11:15 PM

#

junior ore use gradient formula

so is it -300/-1?

rapid verge Sep 17, 2021, 11:15 PM

#

junior ore use gradient formula

height/base?

junior ore Sep 17, 2021, 11:15 PM

#

rise/run

#

is the more technical term

rapid verge Sep 17, 2021, 11:15 PM

#

is the rise -300?

#

or -100

junior ore Sep 17, 2021, 11:15 PM

#

m = y2-y1/x2-x1

#

just use this

#

points are (-1,100) and (0,-200)

#

yes ur answer before was right

#

gradient is 300

rapid verge Sep 17, 2021, 11:16 PM

#

thanks so much \

junior ore Sep 17, 2021, 11:17 PM

#

:)

tame moss Sep 17, 2021, 11:17 PM

#

golden nymph Wat?

$(\frac{x}{\sqrt{3}})^2-1$

ocean sealBOT Sep 17, 2021, 11:17 PM

#

Ziggy

golden nymph Sep 17, 2021, 11:17 PM

#

Umm

#

?

#

What about it

tame moss Sep 17, 2021, 11:18 PM

#

$$x = \sqrt{3} \sec{\theta}$$

ocean sealBOT Sep 17, 2021, 11:18 PM

#

Ziggy

golden nymph Sep 17, 2021, 11:18 PM

#

Soooo

tame moss Sep 17, 2021, 11:18 PM

#

what;s the difference between these too in my substitution?

golden nymph Sep 17, 2021, 11:18 PM

#

Your sub was 3sectheta

#

You should do sqrt 3

vapid herald Sep 17, 2021, 11:19 PM

#

@ancient saddle are you there

golden nymph Sep 17, 2021, 11:19 PM

#

ocean seal **Ziggy**

I mean by this the thing inside the sqaure root before the sub

tame moss Sep 17, 2021, 11:20 PM

#

astral dagger Sep 17, 2021, 11:20 PM

#

artistepepe

tame moss Sep 17, 2021, 11:21 PM

#

golden nymph I mean by this the thing inside the sqaure root before the sub

are my steps correct here?

golden nymph Sep 17, 2021, 11:21 PM

#

Gon check

#

Last step

#

A tan magically disappeared

#

From the numerator

tame moss Sep 17, 2021, 11:22 PM

#

oh oh oh

golden nymph Sep 17, 2021, 11:22 PM

#

@tame moss

tame moss Sep 17, 2021, 11:22 PM

#

it should just be sec^2

golden nymph Sep 17, 2021, 11:22 PM

#

Yup

tame moss Sep 17, 2021, 11:23 PM

#

fluff

#

#

this is wrong

astral dagger Sep 17, 2021, 11:39 PM

#

tame moss this is wrong

not exactly, but you can find another expression for this tan(arcsec)

#

if you need to, but that way is correct too

tame moss Sep 17, 2021, 11:56 PM

#

$$\frac{3 \sqrt{\frac{x^2-3}{3}}} {\sqrt{3}}$$

ocean sealBOT Sep 17, 2021, 11:57 PM

#

Ziggy

tame moss Sep 17, 2021, 11:58 PM

#

this is the final answer

zenith birch Sep 18, 2021, 12:01 AM

#

Can someone show me the steps to finding the deriviative of this? I'm in AP Calculus AB!

#

astral dagger Sep 18, 2021, 12:05 AM

#

zenith birch

you know product rule?

#

also you can just apply linearity and power rule, since sqrt(x)=x^(1/2)

zenith birch Sep 18, 2021, 12:06 AM

#

I don't know if I did the product rule correct

#

(x^1/2) ( 3x^2 -2x)
(1/2x^-1/2)(3x^2-2x) + (x^1/2)(6x-2)
This is as far as I got

astral dagger Sep 18, 2021, 12:06 AM

#

it's correct

#

now you distribute and sum

#

remember power properties and you're done

zenith birch Sep 18, 2021, 12:06 AM

#

so I foil right?

astral dagger Sep 18, 2021, 12:07 AM

#

yeah

placid zinc Sep 18, 2021, 12:07 AM

#

You've got the derivative, if that's all they ask for, you are already done

#

If you want to proceed to simplify, then yeah

zenith birch Sep 18, 2021, 12:07 AM

#

I have to simplify

astral dagger Sep 18, 2021, 12:07 AM

#

placid zinc You've got the derivative, if that's all they ask for, you are already done

indeed, simplifying is good by not always necessary

zenith birch Sep 18, 2021, 12:07 AM

#

ty ill ask if my simplified is correct or not

astral dagger Sep 18, 2021, 12:07 AM

#

ok

zenith birch Sep 18, 2021, 12:10 AM

#

3/2x^3/2 - x^1/2 + 6x^3/2 -2x^3/2
3/2x^3/2 - x^1/2 +4x^3/2
11/2x^3/2 - x^1/2

#

@astral dagger

#

Is that the final answer?

astral dagger Sep 18, 2021, 12:11 AM

#

zenith birch 3/2x^3/2 - x^1/2 + 6x^3/2 -2x^3/2 3/2x^3/2 - x^1/2 +4x^3/2 11/2x^3/2 - x^1/2

you had a typo on the final term in the first line?

zenith birch Sep 18, 2021, 12:13 AM

#

Did I?

#

I don't think there's a typo

ocean sealBOT Sep 18, 2021, 12:14 AM

#

SubGui

zenith birch Sep 18, 2021, 12:14 AM

#

Oh I see it

#

3/2x^3/2 - x^1/2 + 6x^3/2 -2x^1/2
15/2x^3/2 - 3x^1/2 @astral dagger

astral dagger Sep 18, 2021, 12:17 AM

#

zenith birch 3/2x^3/2 - x^1/2 + 6x^3/2 -2x^1/2 15/2x^3/2 - 3x^1/2 <@!520057286220316683>

pepenoted

#

it's correct now

zenith birch Sep 18, 2021, 12:17 AM

#

Yay

#

ty

astral dagger Sep 18, 2021, 12:17 AM

#

np

bronze ice Sep 18, 2021, 12:27 AM

#

yo uh

#

does anyone know how to do this

#

<@&286206848099549185> The left most digit of an integer of length 2000 digits is 3. In this integer, any 2 consecutive digits must be divisible by 17 or 23. The 2000th digit may be either 'a' or 'b'. What is the value of a+b?

#

Idk if I'm being dumb or missing something

royal ermine Sep 18, 2021, 12:47 AM

#

<@&286206848099549185> still need help on my question

plain torrent Sep 18, 2021, 1:02 AM

#

ill be forever grateful

Screen_Shot_2021-09-17_at_7.24.35_PM.png

#

Determine the open intervals on which the function is increasing, decreasing, or constant.

glass lichen Sep 18, 2021, 1:04 AM

#

plain torrent ill be forever grateful

well what does a function being increasing look like graphically?

plain torrent Sep 18, 2021, 1:05 AM

#

glass lichen well what does a function being increasing look like graphically?

not to be a smart ass but it looks like it goes up or increases

glass lichen Sep 18, 2021, 1:05 AM

#

yes

#

so for example, the left most portion is increasing always

#

so at least on the interval (2,inf), f is increasing

plain torrent Sep 18, 2021, 1:06 AM

#

yeah well i put that before i got it wrong

#

idk

#

ill do it again though

glass lichen Sep 18, 2021, 1:07 AM

#

yeah, cause everything bar the the constant portion is inc

plain torrent Sep 18, 2021, 1:08 AM

#

is decreasing DNE

#

does not exist

glass lichen Sep 18, 2021, 1:08 AM

#

yeah it's never dec

plain torrent Sep 18, 2021, 1:09 AM

#

its that it

#

?

glass lichen Sep 18, 2021, 1:10 AM

#

yep.

plain torrent Sep 18, 2021, 1:10 AM

#

much love

#

thank you

plain torrent Sep 18, 2021, 1:11 AM

#

glass lichen yep.

ok strange enough like i said earlier 2, inf is incorrect strangely

#

suggestions?

glass lichen Sep 18, 2021, 1:11 AM

#

cause that isnt the answer

plain torrent Sep 18, 2021, 1:11 AM

#

oof

glass lichen Sep 18, 2021, 1:12 AM

#

there's 2 portions where the graph is increasing

plain torrent Sep 18, 2021, 1:12 AM

#

oh right

#

so i put a union right

glass lichen Sep 18, 2021, 1:12 AM

#

yes.

plain torrent Sep 18, 2021, 1:12 AM

#

so

#

would it be (3,0)u(2, inf). @glass lichen

glass lichen Sep 18, 2021, 1:13 AM

#

no

#

(3,0) is degenerate,
The function doesnt start at 3

plain torrent Sep 18, 2021, 1:15 AM

#

glass lichen 1) (3,0) is degenerate, 2) The function doesnt start at 3

where may it be

glass lichen Sep 18, 2021, 1:15 AM

#

what?

plain torrent Sep 18, 2021, 1:17 AM

#

glass lichen what?

forget that. i'm not sure what you mean

glass lichen Sep 18, 2021, 1:17 AM

#

which part.... I said 2 things

plain torrent Sep 18, 2021, 1:17 AM

#

2

alpine sable Sep 18, 2021, 1:18 AM

#

Can someone please check over this and tell me what I did wrong? Because I got a decimal as an answer

rigid smelt Sep 18, 2021, 1:20 AM

#

4*3 is not -12

alpine sable Sep 18, 2021, 1:21 AM

#

I see

#

Would this be correct then?

#

I think so 👍

bronze ice Sep 18, 2021, 1:30 AM

#

alpine sable Would this be correct then?

yes

rapid verge Sep 18, 2021, 1:31 AM

#

what is 2a

#

Screen_Shot_2021-09-18_at_11.31.26_am.png

#

someone help

#

how do u find formula

#

@junior ore

proud burrow Sep 18, 2021, 1:32 AM

#

The formula is m(gradient) = y2-y1/x2-x1

rapid verge Sep 18, 2021, 1:33 AM

#

so for 2a is it 22-10/4-2?

#

@proud burrow

proud burrow Sep 18, 2021, 1:33 AM

#

Yeah

rapid verge Sep 18, 2021, 1:33 AM

#

thx

dim swallow Sep 18, 2021, 1:38 AM

#

could someone help with solving this problem?

raven rover Sep 18, 2021, 1:43 AM

#

dim swallow could someone help with solving this problem?

How many 5-digit zip codes are possible if digits can be repeated?

Consider all of the possible choices for each individual position in a zip code. Given that repeats are allowed, the exact digit at any given position doesn't restrict the possible choices for other positions.

How many 5-digit zip codes are possible if digits cannot be repeated?

Consider all of the possible choices for the first position in a zip code. Regardless of whatever it is, it places restrictions on the possible choices you have for each subsequent position. This logic applies for every position in the zip code.

alpine sable Sep 18, 2021, 1:45 AM

#

Can someone check this over too? I got another decimal

dim swallow Sep 18, 2021, 1:45 AM

#

@raven rover is there a certain equation I could use?

raven rover Sep 18, 2021, 1:46 AM

#

alpine sable Can someone check this over too? I got another decimal

This channel is already in use

raven rover Sep 18, 2021, 1:47 AM

#

dim swallow <@!800622149903056927> is there a certain equation I could use?

I don't know if there is a name for an explicit formula to use, but arriving at your answer will involve multiplying values together

dim swallow Sep 18, 2021, 1:49 AM

#

raven rover I don't know if there is a name for an explicit formula to use, but arriving at ...

would I have to multiply by 5 to get my answer?

raven rover Sep 18, 2021, 1:49 AM

#

dim swallow would I have to multiply by 5 to get my answer?

Multiply what by 5?

dim swallow Sep 18, 2021, 1:50 AM

#

raven rover Multiply what by 5?

well you said that I would have to multiply values together I did not understand if you meant the 5 digit number or not

raven rover Sep 18, 2021, 1:51 AM

#

You will have to multiply values (that you find yourself) together

#

The topic involved in called Combinations and Permutations

rapid verge Sep 18, 2021, 1:57 AM

#

What would i do for 3a?

#

WHAT IS 3A

Screen_Shot_2021-09-18_at_11.56.30_am.png

#

can some1 help

chrome heron Sep 18, 2021, 1:57 AM

#

raven rover *How many 5-digit zip codes are possible if digits can be repeated?* Consider a...

i think it would be 10 raised to the power 5

dim swallow Sep 18, 2021, 1:57 AM

#

@raven rover I'm still stumped cause i checked the answer for the 1st part and it says 100000 and I don't understand how to get that answer

raven rover Sep 18, 2021, 1:58 AM

#

chrome heron i think it would be 10 raised to the power 5

This is correct, but we're not just giving the answer

raven rover Sep 18, 2021, 1:58 AM

#

dim swallow <@!800622149903056927> I'm still stumped cause i checked the answer for the 1st ...

Essentially you got 10 choices for each of the 5 spots

#

This means you multiply 10 by itself 5 times

chrome heron Sep 18, 2021, 1:58 AM

#

exactly

raven rover Sep 18, 2021, 1:59 AM

#

You can think about all of the possible "5-digit numbers", including those with leading zeroes

chrome heron Sep 18, 2021, 1:59 AM

#

yes because it is a zip code

#

if it was without repetition it would be 10 * 9 * 8 * 7 * 6 * 5 because one digit would be chosen everytime

dim swallow Sep 18, 2021, 2:08 AM

#

@raven rover Okay I understand the 1st part kind of I did 10^5 and got that answer however I don't know about the 2nd part

raven rover Sep 18, 2021, 2:10 AM

#

How many 5-digit zip codes are possible if digits cannot be repeated?

Consider all of the possible choices for the first position in a zip code.

The number of possible digits you can put into the first position is 10 (all of the digits 0-9).

Regardless of whatever it is, it places restrictions on the possible choices you have for each subsequent position. This logic applies for every position in the zip code.

So for the 2nd position, we only have 9 options, because 1 of those options was removed from filling in the first position with a digit.

For the 3rd position, we only have 8 options, because 2 of those options were removed from filling in the first and second positions with different digits.

torpid hazel Sep 18, 2021, 2:14 AM

#

is it still a 5 digit zip code if the first digit is zero?

dim swallow Sep 18, 2021, 2:20 AM

#

Okay I think I understand now thank you @raven rover

errant oracle Sep 18, 2021, 2:23 AM

#

can someone help me with my ordinary differential equations hw?

jovial forum Sep 18, 2021, 2:32 AM

#

How do I solve the following system of equations:

#

y-2zx=0, x-18zy=0, x^2+9y^2-16=0

blissful crag Sep 18, 2021, 2:38 AM

#

#

guys how to solve it

deft python Sep 18, 2021, 2:59 AM

#

What is the value of a, b, and c of the equation:

#

qwait

#

x^2=0

astral dagger Sep 18, 2021, 3:00 AM

#

errant oracle can someone help me with my ordinary differential equations hw?

try posting them on #multivariable-calculus

errant oracle Sep 18, 2021, 3:03 AM

#

astral dagger try posting them on <#496784996510466057>

K

dense kite Sep 18, 2021, 3:05 AM

#

alpine sable Sep 18, 2021, 3:30 AM

#

can someone help with this

#

woven echo Sep 18, 2021, 3:30 AM

#

what was that link fam lmao

alpine sable Sep 18, 2021, 3:31 AM

#

its a upload things ignore it

#

help me do that pls 👀

alpine sable Sep 18, 2021, 3:36 AM

#

obsidian hawk yeah

mb dude dad had closed this wifi, it was kinda late and I got a docs appointment early in the morning

tight locust Sep 18, 2021, 3:41 AM

#

dim swallow could someone help with solving this problem?

10^5, 10 choose 5

mint nest Sep 18, 2021, 3:43 AM

#

can someone help me in #help-2

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i posted it there because it is long

raw folio Sep 18, 2021, 3:44 AM

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i did the first one i got 2root10 but the ans was supposed to be 2root2- please help

alpine sable Sep 18, 2021, 3:46 AM

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raw folio i did the first one i got 2root10 but the ans was supposed to be 2root2- please ...

Did you set it up correctly?

raw folio Sep 18, 2021, 3:46 AM

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set it up?
i just used the formula

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wait

#

i will tell you what i did so far

ocean sealBOT Sep 18, 2021, 3:46 AM

#

alpine sable Sep 18, 2021, 3:47 AM

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raw folio set it up? i just used the formula

Yeah but did you use it correctly?

#

Probably you must've messed up somewhere in your arithmetics

raw folio Sep 18, 2021, 3:47 AM

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root (3-5)whole square + (-6-8)wholesquare
root(-2)whole square + (-14)whole square
root 4+196
root 200

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thats what i did

woven echo Sep 18, 2021, 3:48 AM

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the -6 -8

wary stream Sep 18, 2021, 3:48 AM

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-6 - -8

raw folio Sep 18, 2021, 3:48 AM

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um?

alpine sable Sep 18, 2021, 3:48 AM

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Yeah you got (-8)

wary stream Sep 18, 2021, 3:48 AM

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Not -6 - 8

woven echo Sep 18, 2021, 3:48 AM

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subtract the negative

alpine sable Sep 18, 2021, 3:48 AM

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not positive 8

raw folio Sep 18, 2021, 3:48 AM

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OHHH i got it

woven echo Sep 18, 2021, 3:48 AM

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(-8)

raw folio Sep 18, 2021, 3:48 AM

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thankss

mint nest Sep 18, 2021, 3:49 AM

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bruh can i get some help

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the solution is prolly so simple

wary stream Sep 18, 2021, 3:50 AM

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mint nest bruh can i get some help

Don't ask to ask

alpine sable Sep 18, 2021, 3:50 AM

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can help with this.

mint nest Sep 18, 2021, 3:50 AM

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wary stream Don't ask to ask

i didnt ask to ask
#help-2

hallow magnet Sep 18, 2021, 3:52 AM

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I got like

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a quick maff

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If anyone knows the Intermediate Value Theorem, if f(x) is defined from [0,2] for example, then does f(0)<f(c)<f(2) or f(0)<=f(c)<=f(2)

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so basically are the endpoints included in the possible range

mint nest Sep 18, 2021, 3:53 AM

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yes

hallow magnet Sep 18, 2021, 3:53 AM

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so its the latter

mint nest Sep 18, 2021, 3:53 AM

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yes

hallow magnet Sep 18, 2021, 3:53 AM

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and you're 200% sure of it

mint nest Sep 18, 2021, 3:53 AM

#

<=

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[]

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yes

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you could have found this by doing 1 google search

#

#

[a, b]

hallow magnet Sep 18, 2021, 3:54 AM

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ok theres no other reason why i wouldve gotten it incorrect lol

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between f(a) and f(b) as in range: [f(a), f(b)]?

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because im kinda getting conflicting sources here

mint nest Sep 18, 2021, 3:54 AM

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yes

hallow magnet Sep 18, 2021, 3:54 AM

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some say its (f(a), f(b))

mint nest Sep 18, 2021, 3:54 AM

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hm

hallow magnet Sep 18, 2021, 3:55 AM

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yeah lmao im kinda having doubts rn

mint nest Sep 18, 2021, 3:55 AM

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me too

hallow magnet Sep 18, 2021, 3:56 AM

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uhh

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any calc expats hre

alpine sable Sep 18, 2021, 3:56 AM

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what

hallow magnet Sep 18, 2021, 3:57 AM

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hallow magnet If anyone knows the Intermediate Value Theorem, if f(x) is defined from [0,2] fo...

read from ehre

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uh oh

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did i just ask something that confused many people

dire wren Sep 18, 2021, 4:14 AM

#

#

i suck at probability

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does anyone know what type of probability is in #18 and #19

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like what its called

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or like a video

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idk

distant bobcat Sep 18, 2021, 4:37 AM

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How to do this?

undone dock Sep 18, 2021, 4:40 AM

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distant bobcat How to do this?

$\int_{a}^{b} f(x) dx = -\int_{b}^{a} f(x) dx$

ocean sealBOT Sep 18, 2021, 4:41 AM

#

K.

undone dock Sep 18, 2021, 4:42 AM

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And then use
$$\int_{a}^{b} f(x)dx + \int_{b}^{c} f(x)dx = \int_{a}^{c} f(x)dx$$

ocean sealBOT Sep 18, 2021, 4:42 AM

#

K.

undone dock Sep 18, 2021, 4:43 AM

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Is it more clear what to do now?

glass elm Sep 18, 2021, 4:45 AM

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is e^log x = 1?

#

and is d/dx e^log x = 1?

undone dock Sep 18, 2021, 4:47 AM

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glass elm is e^log x = 1?

Assuming log is the natural log (and x>0), e^log(x) = x

glass elm Sep 18, 2021, 5:06 AM

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@undone dock what about the other log?

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then, will it be 1?

distant bobcat Sep 18, 2021, 5:21 AM

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ocean seal **K.**

Oh it's a good trick.

jolly stone Sep 18, 2021, 5:31 AM

#

alpine sable can help with this.

i did a bamboozled trickshot and somehow got that worked
x^5 - 2x^2 y^2 + y^5 = 0
so we notice that it almost looks like a perfect square for first two terms: (x^3 - y^2)^2 = x^6 - 2x^3 y^2 + y^4
multiply by x in original equation, and add y^4 - y^4 term on LHS we get
x^6 - 2x^3 y^2 + y^4 - y^4 + xy^5 = 0
(x^3 - y^2)^2 - y^4 (1 - xy) = 0
(1 - xy) = (x^3 - y^2)^2 / y^4
so sqrt(1-xy) = (x^3 - y^2)/y^2, a rational number

alpine sable Sep 18, 2021, 5:32 AM

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lol

#

tysm

#

Screen_Shot_2021-09-17_at_10.32.01_PM.png

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help

jolly stone Sep 18, 2021, 5:33 AM

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i have no idea why that method works, i actually want more elegant solutions than this

jolly stone Sep 18, 2021, 5:33 AM

#

alpine sable

hint: (a+b+c+d)^2 = ???

alpine sable Sep 18, 2021, 5:34 AM

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jolly stone hint: (a+b+c+d)^2 = ???

ah

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it equals 100, but we need to subtract some stuff

#

wait

jolly stone Sep 18, 2021, 5:36 AM

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hold on im actually stuck a bit

#

but that's probably where we should start

#

ok we change a bit: consider (a+b) + (c+d) = 10 and (a+b) * (c+d) = 16

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we can find (a+b) and (c+d) by the factorization technique

#

so (a+b) = 2 and (c+d) = 8, or (a+b) = 8 and (c+d) = 2

#

both 2 cases should lead to the same answer

#

do the same for (a+d)(b+c)

alpine sable Sep 18, 2021, 5:41 AM

#

right now we need to subtract 2a(b+c+d)+2b(c+d)+2cd from 100

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but that method doesn't work

jolly stone Sep 18, 2021, 5:41 AM

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yeah it didnt, soz

alpine sable Sep 18, 2021, 5:43 AM

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im trying to find ab and cd

surreal meadow Sep 18, 2021, 5:43 AM

#

how about
(a+b)(c+d) + (c+d)^2 = 10*(c+d)
16 + (c+d)^2 = 10 * (c+d)?

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would that get you guys anywhere?

#

you can treat this as a quadratic and maybe do something with it

alpine sable Sep 18, 2021, 5:44 AM

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hmmm

surreal meadow Sep 18, 2021, 5:46 AM

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so (c+d) = 16 or 4, don't know if that's helpful lol

jolly stone Sep 18, 2021, 5:46 AM

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ok so

#

wolframalpha told me it has infinitely many solutions

surreal meadow Sep 18, 2021, 5:46 AM

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a+b + 4 = 10 -> a+b = 6
(a+b)4 = 16 -> a+b = 4 which does not compute

jolly stone Sep 18, 2021, 5:47 AM

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and a^2+b^2+c^2+d^2 has multiple values

#

,w evaluate a^2+b^2+c^2+d^2, a+b+c+d = 10, (a+b)(c+d) = 16, (a+d)(b+c) = 24

ocean sealBOT Sep 18, 2021, 5:47 AM

#

Results provided by WolframAlpha

Click here to refine your query online
Upgrade to WolframAlpha Pro!

undone dock Sep 18, 2021, 5:48 AM

#

glass elm <@!436114608692920330> what about the other log?

Sorry for thelate reply, but yes.
$$\dv{x} e^{\ln{x}} = \dv{x} x = 1$$

ocean sealBOT Sep 18, 2021, 5:48 AM

#

K.

jolly stone Sep 18, 2021, 5:48 AM

#

tried to solve for a,b,c,d but the 4 equations actually became only 3 equations (1 free variable)

surreal meadow Sep 18, 2021, 5:49 AM

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surreal meadow so (c+d) = 16 or 4, don't know if that's helpful lol

fucked this one up

#

c+d = 8 or 2

undone dock Sep 18, 2021, 5:49 AM

#

undone dock Sorry for thelate reply, but yes. $$\dv{x} e^{\ln{x}} = \dv{x} x = 1$$

Although, because ln(x) is non existant at x<0, e^ln(x) will also be non existant at x<0

surreal meadow Sep 18, 2021, 5:53 AM

#

can someone help me spot the mistake cause i'm going crazy:

a + b + c + d = 10
(a+b)(c+d) = 16
w = a+b
z = c+d

w+z = 10
wz = 16

wz + z^2 = 10z
16 + z^2 = 10z
z^2 - 10z + 16 = 0

z = (10+-sqrt(36))/2
z = 8, 2

w + 8 = 16 -> w = 8
but 8*8 =/= 16 

and w + 2 = 16 -> w = 14
but 14*2 =/= 16

did i introduce extraneous solutions somehow?

jolly stone Sep 18, 2021, 5:54 AM

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where did w+8 = 16 come from

#

isnt it 10

versed prairie Sep 18, 2021, 5:54 AM

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What is the answer for this ??

surreal meadow Sep 18, 2021, 5:54 AM

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oh it's 10

#

smh

#

thank you for catching that

jolly stone Sep 18, 2021, 5:54 AM

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but still i dont think it's solvable

#

wolframalpha even told us that

surreal meadow Sep 18, 2021, 5:55 AM

#

well we now know that a+b = 2,8 and so is c+d

versed prairie Sep 18, 2021, 5:56 AM

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I got D so checkin'

surreal meadow Sep 18, 2021, 5:58 AM

#

so

a+b+c+d = 10
w = (a+d)
z = (b+c)
wz + z^2 = 10z
...
z = 8,2

a+d = 6 -> b+c = 4
a+d = 4 -> b+c = 6

a+b = 8 -> c+d = 2
a+b = 2 -> c+d = 8

#

can something be done with those last few eq.?

jolly stone Sep 18, 2021, 6:00 AM

#

i think you meant a+d, b+c = 4, 6

surreal meadow Sep 18, 2021, 6:00 AM

#

do i

#

oh yes i put wz = 16 instead of 24

#

my bad

versed prairie Sep 18, 2021, 6:08 AM

#

Smne answer mine

jolly stone Sep 18, 2021, 6:13 AM

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surreal meadow my bad

then unfortunately you can solve b,c,d in terms of a, and then the term a^2+b^2+c^2+d^2 becomes some expressions in terms of a

zinc minnow Sep 18, 2021, 7:07 AM

#

hey i guys i'm new here

#

i have a question about geogebra classic 5

#

does anyone know how to do this graph in geogebra which is made in desmos ?

#

rigid smelt Sep 18, 2021, 7:18 AM

#

have you tried something like f(x)={0<y<17: -(x-11)^2+17}?

#

tho actually you can just type in f(x)=-(x-11)^2 + 17 {-sqrt(17)+11<x<sqrt(17)+11}

#

that is still an appropriate input in geogebra iirc

zinc minnow Sep 18, 2021, 7:24 AM

#

ok will try it thanks

rigid smelt Sep 18, 2021, 7:26 AM

#

or if that fails, i guess you'll just have to return to using the if function

#

just type f(x)= if

#

and there will be an intstruction for you

zinc minnow Sep 18, 2021, 7:31 AM

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rigid smelt tho actually you can just type in f(x)=-(x-11)^2 + 17 {-sqrt(17)+11<x<sqrt(17)+1...

thanks it worked but how does it differ from the 0<y<17?

rigid smelt Sep 18, 2021, 7:32 AM

#

well it doesnt, its just a domain restriction that is written out rather than a range restriction. As of my experience with geogebra, it cant process multiple inputs at once very well, or maybe im just really noob at it

#

so usually, i just put everything in terms of a variable

#

but i dont use geogebra much so i cant say

#

maybe if you use the if(condition, result) function, you might still be able to input 0<y<17 as a valid input

zinc minnow Sep 18, 2021, 7:34 AM

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ohh ok thank you very much

winter perch Sep 18, 2021, 7:36 AM

#

Hello. can someone help me with this table it is saying exclusive above but its inclusive in the table

rigid wind Sep 18, 2021, 7:40 AM

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"exclusive or" (XOR) is the name of the operator

shell quail Sep 18, 2021, 7:58 AM

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hey what formula is this or just explain to me what is this exactly.. n^2 + 2

vale wigeon Sep 18, 2021, 7:59 AM

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n^2 + 2 is an expression

#

one that isn't very remarkable

#

where did you see this that made you ask such a question?

shell quail Sep 18, 2021, 8:00 AM

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I dont know its from my friend, I think he had like a sequence problem

vale wigeon Sep 18, 2021, 8:00 AM

#

is this from a conversation with said friend?

#

can you screenshot the relevant part(s) of the conversation?

shell quail Sep 18, 2021, 8:01 AM

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our message conversation isnt in english

vale wigeon Sep 18, 2021, 8:01 AM

#

again, like, the expression n^2 + 2 is really not remarkable at all. it's a quadratic polynomial in n and it doesn't have much significance beyond that.

#

okay, then what language is it in?

shell quail Sep 18, 2021, 8:01 AM

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its filipino

vale wigeon Sep 18, 2021, 8:01 AM

#

...right, nevermind

#

maybe you could look through it still and post your friend's problem?

#

even if it's in filipino too

#

if there's something that needs translation i'll ask you

shell quail Sep 18, 2021, 8:04 AM

#

its finding the 25th tem on the sequence: 3, 6, 11, 18

#

thats why he wants to know what this n^2 + 2 is all about so he can try to answer on hes own

#

and they werent given a formula as well..

vale wigeon Sep 18, 2021, 8:05 AM

#

and you're given nothing except the first four terms of the sequence?

#

and you're just expected to guess that this sequence is generated by the formula a(n) = n^2 + 2?

shell quail Sep 18, 2021, 8:06 AM

#

yeep thats their problem.. nice teaching ammaright?

vale wigeon Sep 18, 2021, 8:06 AM

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garbage teaching.

shell quail Sep 18, 2021, 8:06 AM

#

they werent given a formula just solve the 25th term

#

with the sequence 3,6,11,18

#

its philippines best online class ever :))

vale wigeon Sep 18, 2021, 8:07 AM

#

the 5th term and all terms following it are equal to 19 until further information is given that contradicts this

small cypress Sep 18, 2021, 8:08 AM

#

#

#

guys i dont understand this

#

i mean just c

shell quail Sep 18, 2021, 8:09 AM

#

vale wigeon the 5th term and all terms following it are equal to 19 until further informatio...

Thanks Ann for the help I appreciate you, ill try to help my friend now

alpine sable Sep 18, 2021, 8:13 AM

#

small cypress guys i dont understand this

okie so um

#

im just a smol kid

#

like, grade 8

#

but urhhh

#

so, altogether there are 60 ppl right

#

and those 60 ppl have been divded amongst the 5 genres

small cypress Sep 18, 2021, 8:14 AM

#

yes

alpine sable Sep 18, 2021, 8:14 AM

#

so, how many ppl amongst the 60 like factual tv programmes?

#

|| 15 ||

And so since there are || 15 || ppl who like factual programmes, you put the amount of ppl who like factual programs over the amount of ppl in total, which is 60

#

so the answer would be 15 / 60
However, we can simplify this;
There is 1 “15” in 15, and 4 “15’s” in 60

#

therefore the simplified version, would be 1/4

small cypress Sep 18, 2021, 8:18 AM

#

i was asking abt c lol

alpine sable Sep 18, 2021, 8:18 AM

#

i hope this helps you <33 but if it dosnt, i apologise 🙏 as i said im only a smol kid so i probs dont get the concepts of the question aha so yeah maybe ask smne who is smarter than me lol :)

alpine sable Sep 18, 2021, 8:18 AM

#

small cypress i was asking abt c lol

oh lmaoooo soz

small cypress Sep 18, 2021, 8:18 AM

#

lmao

#

do u know how to do c?

alpine sable Sep 18, 2021, 8:18 AM

#

hm possibley 🤔

#

well

echo spire Sep 18, 2021, 8:19 AM

#

Is the channel occupied?

alpine sable Sep 18, 2021, 8:19 AM

#

I think so, we’re just trying to figure out the problem above ^^

echo spire Sep 18, 2021, 8:20 AM

#

small cypress

P = Favorable cases/ total cases.

small cypress Sep 18, 2021, 8:20 AM

#

?

echo spire Sep 18, 2021, 8:21 AM

#

Basically, if 3 girls are wearing a black and one girl wearing a red shit the probability of me choosing the red girls is 1/4

#

4 girls are wearing black = total cases
And one girl wearing a red shirt = favorable/acceptable cases

#

Apply the same concept

#

#

So, can someone help me here I need to find out how many functions there are with this propriety

alpine sable Sep 18, 2021, 8:23 AM

#

small cypress ?

Well, wouldn’t you just find the probability of finding smne choosing drama, which is ???/60 and then when you find the game show one it would be ???/59??

#

idk you could try georges method it’s probs right lmao

small cypress Sep 18, 2021, 8:25 AM

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ohhh I see George

alpine sable Sep 18, 2021, 8:28 AM

#

#

help please

vale wigeon Sep 18, 2021, 8:30 AM

#

$b + \frac{c}{a} + b$... looks very suspicious \thonk

ocean sealBOT Sep 18, 2021, 8:30 AM

#

Ann

alpine sable Sep 18, 2021, 8:30 AM

#

huh

vale wigeon Sep 18, 2021, 8:30 AM

#

it sounds like someone intended to type something else but screwed it up

alpine sable Sep 18, 2021, 8:30 AM

#

its right, lol

#

theres an awnser too it when i finish the problem

woven echo Sep 18, 2021, 8:31 AM

#

It's weird bc they didn't put 2b

vale wigeon Sep 18, 2021, 8:31 AM

#

if it really is right, then why didn't your teacher write it as $2b + \frac{c}{a}$?

ocean sealBOT Sep 18, 2021, 8:31 AM

#

Ann

vale wigeon Sep 18, 2021, 8:31 AM

#

anyway, this looks like it'll involve a lot of annoying number-bashing

alpine sable Sep 18, 2021, 8:31 AM

#

vale wigeon if it really is right, then why didn't your teacher write it as $2b + \frac{c}{a...

she didn't write it its on a website that she gave us. when you put your awnser in it will show the awnser

#

i think i have the awnser, but im not sure

alpine sable Sep 18, 2021, 8:53 AM

#

what happens here, I don't understand these 2 steps :(

vale wigeon Sep 18, 2021, 8:54 AM

#

divide both sides by 5

#

that's what's happening here

woven echo Sep 18, 2021, 8:54 AM

#

they just swap the order of -5y^4 and + 3 and divide by 5

alpine sable Sep 18, 2021, 8:55 AM

#

I don't get it

woven echo Sep 18, 2021, 8:56 AM

#

3 - 5y^4 is the same as -5y^4 + 3 yea?

#

they just switch them around

#

sry i forgot the y up there in the first one lol

#

does that make sense to u tho?

alpine sable Sep 18, 2021, 8:58 AM

#

no

woven echo Sep 18, 2021, 8:58 AM

#

so think about like 2 numbers without any variables if that makes it easier

#

if you have 5 - 3

#

easy right thats 2

#

now if you just swap them but keep the signs right

#

-3 and +5

untold tapir Sep 18, 2021, 8:59 AM

#

its known as the commutative law

woven echo Sep 18, 2021, 8:59 AM

#

ye

alpine sable Sep 18, 2021, 9:00 AM

#

why is the x in 5x separated from 5 in the 2nd step

woven echo Sep 18, 2021, 9:01 AM

#

that's where they divide both sides by 5

rigid wind Sep 18, 2021, 9:01 AM

#

divide both side of the equation by 5

woven echo Sep 18, 2021, 9:01 AM

#

in an effort to start isolating that x variable

rigid wind Sep 18, 2021, 9:02 AM

#

alpine sable why is the x in 5x separated from 5 in the 2nd step

$5x^2=3-5y^4\ \frac{5x^2}{5}=\frac{3-5y^4}{5}$

ocean sealBOT Sep 18, 2021, 9:02 AM

#

Vee

queen raven Sep 18, 2021, 9:05 AM

#

How do i factorise a quadratic expression using complete the square method

vale wigeon Sep 18, 2021, 9:05 AM

#

complete the square, then apply the difference of squares identity

alpine sable Sep 18, 2021, 9:05 AM

#

why are they dividing them by 5 tho

woven echo Sep 18, 2021, 9:05 AM

#

so you can solve for x

vale wigeon Sep 18, 2021, 9:05 AM

#

actually @queen raven we should move to another channel

queen raven Sep 18, 2021, 9:05 AM

#

go to questions 5

alpine sable Sep 18, 2021, 9:07 AM

#

damn math is just not for me

woven echo Sep 18, 2021, 9:07 AM

#

just keep at it

vale wigeon Sep 18, 2021, 9:08 AM

#

clar, have you ever solved equations before in your life?

alpine sable Sep 18, 2021, 9:10 AM

#

easy ones

versed prairie Sep 18, 2021, 9:10 AM

#

Anyone Up. I am doing a worksheet on Relations and Functions and can't figure what this tries to convey and you know the rest. Help me to solve it....

#

Please Help Meh

alpine sable Sep 18, 2021, 9:22 AM

#

wait 2x = 2•x? i never knew that wow

#

why didnt you tell me

olive stump Sep 18, 2021, 9:44 AM

#

Can anyone help me solve this?

junior ore Sep 18, 2021, 9:59 AM

#

olive stump Can anyone help me solve this?

im sure there some easier and creative way

#

but u can just rationalise the denominator

#

may take a while though

olive stump Sep 18, 2021, 10:00 AM

#

k

#

I tried rationalizing and then got stuck

junior ore Sep 18, 2021, 10:00 AM

#

u can just wait

#

theres prob some better ways to do it

olive stump Sep 18, 2021, 10:01 AM

#

k i will wait.

junior ore Sep 18, 2021, 10:01 AM

#

olive stump I tried rationalizing and then got stuck

oh which part?

#

if u try throwing it into symbolab it gives u step by step

olive stump Sep 18, 2021, 10:02 AM

#

I got $\frac{7\sqrt{15}(\sqrt{2} - 1)}{5}$

ocean sealBOT Sep 18, 2021, 10:02 AM

#

Mark Traces

olive stump Sep 18, 2021, 10:02 AM

#

And then got stuck

junior ore Sep 18, 2021, 10:02 AM

#

olive stump And then got stuck

u dunno how to expand that?

olive stump Sep 18, 2021, 10:02 AM

#

I thought i could take lcm but then it would just get longer

junior ore Sep 18, 2021, 10:03 AM

#

olive stump I thought i could take lcm but then it would just get longer

wait is this ur final answer?

olive stump Sep 18, 2021, 10:03 AM

#

Nah

junior ore Sep 18, 2021, 10:03 AM

#

which part is this then?

#

or was that sarcasm

untold tapir Sep 18, 2021, 10:04 AM

#

try and solve the other two fractions, see if they cancel out?

#

rationalize*

olive stump Sep 18, 2021, 10:04 AM

#

$\frac{7\sqrt{30} - 7\sqrt{15}}{5} - 3\sqrt{30} + 2\sqrt{5} - 6$

#

I got this

ocean sealBOT Sep 18, 2021, 10:04 AM

#

Mark Traces

olive stump Sep 18, 2021, 10:04 AM

#

And then got stuck

junior ore Sep 18, 2021, 10:05 AM

#

oh wth howd u get to that

#

did u rationalise every single fraction individually?

olive stump Sep 18, 2021, 10:05 AM

#

Ye

#

I rationalized all of them individually

untold tapir Sep 18, 2021, 10:06 AM

#

what about the $-\sqrt(10)$ at the end?

ocean sealBOT Sep 18, 2021, 10:06 AM

#

andrewkong972

untold tapir Sep 18, 2021, 10:06 AM

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or did i do it wrongly

olive stump Sep 18, 2021, 10:06 AM

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i didn't get that in my rationalizing process

jovial forum Sep 18, 2021, 10:08 AM

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Can I ask a question now or is this still in use?

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Should be a quick one

olive stump Sep 18, 2021, 10:08 AM

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This is still in use

jovial forum Sep 18, 2021, 10:08 AM

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No worries

versed prairie Sep 18, 2021, 10:09 AM

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Take LCM and Conjugate it

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You can't rationalise each of them seperately

junior ore Sep 18, 2021, 10:09 AM

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u cant??

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olive stump Sep 18, 2021, 10:09 AM

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oh ok. Thanks!

junior ore Sep 18, 2021, 10:09 AM

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btw the answer

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is very long

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so idk if ur teacher give u deliberately

versed prairie Sep 18, 2021, 10:10 AM

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You can conjugate them seperately but it'll literally confuse you

untold tapir Sep 18, 2021, 10:10 AM

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i got $\frac{5\sqrt{10}-7\sqrt{15}-3\sqrt{30}}{5}+4$ lol

ocean sealBOT Sep 18, 2021, 10:10 AM

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andrewkong972

junior ore Sep 18, 2021, 10:12 AM

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oh ok

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idk i put into calculator

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is this the ques?

olive stump Sep 18, 2021, 10:13 AM

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Yea

junior ore Sep 18, 2021, 10:13 AM

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yeah ok well i put that into symbolab

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and the answer is what i screenshotted^

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olive stump Sep 18, 2021, 10:14 AM

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I see

junior ore Sep 18, 2021, 10:14 AM

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yes unless somehow it is wrong

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but who knows

olive stump Sep 18, 2021, 10:14 AM

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Can u send me the process?

junior ore Sep 18, 2021, 10:14 AM

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https://www.symbolab.com/solver/step-by-step/\frac{\left(7\sqrt{3}\right)}{\sqrt{10}%2B\sqrt{5}}-\frac{2\sqrt{5}}{\sqrt{6}%2B\sqrt{5}}-\frac{3\sqrt{2}}{\sqrt{15}%2B3\sqrt{2}}?or=input

Step-by-Step Calculator - Symbolab

Free Pre-Algebra, Algebra, Trigonometry, Calculus, Geometry, Statistics and Chemistry calculators step-by-step

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here

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is the solution on it?

olive stump Sep 18, 2021, 10:15 AM

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Yea

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Thanks

junior ore Sep 18, 2021, 10:15 AM

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they did it the lcm

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regardless the answer is very complicated

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or its very algebraic

undone dock Sep 18, 2021, 10:16 AM

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junior ore

that doesnt seem right, i doubt a teacher would give a question like that

junior ore Sep 18, 2021, 10:17 AM

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undone dock that doesnt seem right, i doubt a teacher would give a question like that

yes exactly i agree

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but unless i put the ques wrong in the calculator^

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it cant really be wrong

alpine sable Sep 18, 2021, 10:17 AM

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whats the initial question

olive stump Sep 18, 2021, 10:18 AM

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olive stump Can anyone help me solve this?

@alpine sable ☝️

undone dock Sep 18, 2021, 10:19 AM

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alpine sable Sep 18, 2021, 10:19 AM

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hm why would they give you such a question lol

undone dock Sep 18, 2021, 10:19 AM

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wolfram alpha gave this, which is the same thing i got working it out by hand

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i just multiplied each fraction by the conjugate

olive stump Sep 18, 2021, 10:20 AM

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I see

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occupied

undone dock Sep 18, 2021, 10:21 AM

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olive stump I see

i can send you the working out i did if youd like, though its very messy

olive stump Sep 18, 2021, 10:21 AM

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undone dock i can send you the working out i did if youd like, though its very messy

its all right. Please send it.

alpine sable Sep 18, 2021, 10:21 AM

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hello

olive stump Sep 18, 2021, 10:21 AM

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alpine sable hello

occupied.

alpine sable Sep 18, 2021, 10:22 AM

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olive stump occupied.

?

junior ore Sep 18, 2021, 10:22 AM

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undone dock wolfram alpha gave this, which is the same thing i got working it out by hand

whaa how

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so i did put in calculator wrong??

undone dock Sep 18, 2021, 10:23 AM

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no you put it right, i assume that it was some sort of calculating error which sometimes happens with long computations, not sure though

junior ore Sep 18, 2021, 10:23 AM

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oh okk

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thats interesting to know

undone dock Sep 18, 2021, 10:23 AM

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olive stump its all right. Please send it.

olive stump Sep 18, 2021, 10:23 AM

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Thanks!

undone dock Sep 18, 2021, 10:24 AM

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ask if you have any questions

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youre welcome

jovial forum Sep 18, 2021, 10:24 AM

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Hello

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can someone step me through this?

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Engliush is my second language so not understanding lecture

alpine sable Sep 18, 2021, 10:25 AM

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oh boy lol

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I won't be here for long but probably best search up simultaneous equations

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with 3 vars

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and 3 equations

jovial forum Sep 18, 2021, 10:26 AM

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honsetly i get the basic idea i'm just struggling to get the answer

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tried substite and keep messing up or something,

alpine sable Sep 18, 2021, 10:27 AM

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Maybe try elimination

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usually that's easier

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but as said imma have to head out in a bit if nobody answers i'll check it out

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maybe in 2 hrs

jovial forum Sep 18, 2021, 10:29 AM

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thanks, would appreciate, I'm sure it's something dumb I'm doing

alpine sable Sep 18, 2021, 10:30 AM

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does xVy mean X • radical y ??