help-0

[leaden tusk]

Lemme try task b)

Give me an example question

I wanna make sure if its all good

Not a full question

Just to see if i decide right between adding and subtracting

[forest marsh]

a hard one : -2x -(4+x) = 2x - 6

[leaden tusk]

...it is a hard one-

Uhh

Brackets mean multiplying

[forest marsh]

the final boss man

[leaden tusk]

..i dunno <:(.

[forest marsh]

nah you can do it i know

[leaden tusk]

Hmm

-2x * 4x - 2x...

Idk where im going with this

[forest marsh]

this is only the minus who is multiply to the bracket

the -2x is apart

[leaden tusk]

???

[forest marsh]

it's -2x + (-1)*(4+x) if you want to write it like this

so you will have -2x -4 -x = 2x-6

[leaden tusk]

Uhhhhhhhh

[leaden tusk]

Hmm

Yeah im confused..

[forest marsh]

apply what we have seen before

this

[leaden tusk]

+6?

-2x -4 -x = 2x-6
+6 +6

-2x 2 - x = 2x

I made a mess but...

[forest marsh]

yes theres a + missing but np keep going

[leaden tusk]

-2x + 2 - x = 2x

Uhhh

Not sure how do i do 2 - x when i dunno what x is

[forest marsh]

they don't depend of each others, you can add two for example or simplfy the x terms on the left side

[leaden tusk]

How?

[forest marsh]

how do they don't depend each other ?

[leaden tusk]

How do we add or simplify

Idk. Its a bit late so im kinda tired. Most i can do is listen and screenshot :3

[forest marsh]

gotchu

so you can simplify -2x + 2 - x such as x terms combine, you will get -2x -x + 2

and it'll become -3x +2

this is simplifying

and to add you could just substract 2 on both sides of the equation which will give you -3x + 2 -2 = 2x -2

-3x = 2x -2

substract as seen before

-3x -2x = -2

and this is -5x = -2

5x = 2

x = 2/5

[leaden tusk]

-3x 2 - 2????

Or did you mean -3x + 2 - 2?

Ohhh

[forest marsh]

so if it's all good i think you should try at another moment the others equations to know if you understand the method and if it's not, you can come back for further explain

[leaden tusk]

Alright. Im a bit tired. So ima call it a night. And tomorrow i gotta learn the 2nd and 3rd part. Thanks for the help yaku :3

[forest marsh]

no problem!

[forest marsh]

don't forget to .close

[leaden tusk]

Right right

.close

[lone heart]

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[lone heart]

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[ocean seal]

kisnar

kisnar

kisnar

kisnar

kisnar

kisnar

[tight pier]

keep cooking

[ocean seal]

kisnar

[untold crane]

I don’t found a mistake in your work

It seems to be right

Well done 👍

[lone heart]

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• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

[slim wave]

hi, my question is from the subject statistics, and it requires me to code in R. i have tried to compare the question to the examples from lecture slide but i am a bit confused if i should perfom

1. two-sample Z test
2. paired-samples t-test

[lone heart]

@slim wave Has your question been resolved?

[lone heart]

@slim wave Has your question been resolved?

[lone heart]

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• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

[shy hull]

I thought maybe u could be 5x and dv could be arctan(u)dx but it won't even accept that syntax (says it's invalid)

Other than that, I am not sure how you could extract any u-value here

[gray isle]

consider k = 1* k

[shy hull]

Ok so integration by parts is useless here

[gray isle]

no

[shy hull]

*well not useless but unnecessary

It's just being done for practice I guess?

[gray isle]

no, its needed

[shy hull]

Why is it needed when we know the integral of arctan

[gray isle]

do you?

[shy hull]

Well I use a list of identities

Am I just deriving the identity

[gray isle]

which identity do you have that's telling you the integral of arctan

[shy hull]

Oh I misread this

So let's say u is arctan(5x) and dv is 1dx

[gray isle]

yeh, that's not telling you the integral of arctan
that's saying what integral gives arctan, essentially telling you the derivative of arctan

[shy hull]

Making v = x and du = ???

I'm guessing this will be 1/(1+5x^2) then?

[gray isle]

no

[shy hull]

Why's that

[gray isle]

chain rule and order of operations

the whole (5x) needs to be squared, not just the x
and you'd also need to multiply by the derivative of the inner function 5x

[shy hull]

Oh

Wait chain rule is "multiply by derivative of arguments in case of taking derivative of a function"?

[shy hull]

The derivative would be 10x^2 so would that make the whole thing

$\frac{10x^2}{1+25x^2}$

[ocean seal]

Eyesonjune

[gray isle]

no

why 10x^2

what are you differentiating/what rules are you applying

[shy hull]

Oh I think you meant to multiply by the inner function not the derivative of it

right

So it would be

[gray isle]

no

[shy hull]

$\frac{5x}{1+25x^2}$

[gray isle]

multiply by the derivative of the inner function

[ocean seal]

Eyesonjune

[gray isle]

the inner function is 5x

[shy hull]

The inner function being 5x

[gray isle]

what's the derivative of 5x

[shy hull]

Crap

it's 5

[gray isle]

yes

[shy hull]

But that's still wrong

wait

no you're right

the x comes from v

Ok

Thanks

[shy hull]

This is what I get for looking at the answer before I understand the process

.close

[lone heart]

Channel closed

Closed by @shy hull

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[lone heart]

Available help channel!

Send your question here to claim the channel.

Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

[summer dirge]

I don't understand this line of the proof

[summer dirge]

everything else is fine, just this

I don't understand where Spivak got that from

[wraith stratus]

I was about to say [a,x] is compact

but then I realized you were proving Heine borel

basically alpha is your sup

[summer dirge]

actually, it's the line before that one that's giving me trouble

not the underlined line

[wraith stratus]

do you remember the def of sup

[summer dirge]

yeah, it's the least upper bound of an ordered set

Since alpha is the least upper bound of A, there is an x in this interval such that x \in A

why?

[wraith stratus]

well what can you say about the interval (-e + alpha, alpha + e)

what would happen if no such x existed

[summer dirge]

uhh

wouldn't alpha be a singleton in that case?

[wraith stratus]

well say no such x existed between (-e + alpha, alpha]

for a fixed epsilon

then - epsilon + alpha is...

[summer dirge]

I dunno

I feel like it would just have to equal alpha in that case

but that can't be the case

since eps > 0

[wraith stratus]

hang on

how do I just draw a picture on android

[summer dirge]

uhh, idk?

[wraith stratus]

Ok have a gym plug then

[rose sigil]

lmfao

[wraith stratus]

so the whole line is A

now suppose that segment (- epsilon + alpha, alpha] doesn't contain any element from A

then what exactly will happen to alpha = sup A

also guys

4 plates soon please send me your thoughts and prayers

[summer dirge]

wait, I am totally not following this

[wraith stratus]

[summer dirge]

gl

[rose sigil]

lift me instead

[wraith stratus]

alpha is a LEAST upper bound

[summer dirge]

yes

I agree

[wraith stratus]

LEAST

if there's nothing in -e + alpha

then -e + alpha is now an upper bound

[summer dirge]

hold on... thinking

[rose sigil]

,rotate ccw

[ocean seal]

Couldn't find an attached image in the last 10 messages.

Jun 2, 2024, 4:47 AM

[wraith stratus]

,rotate

[wraith stratus]

4 plates time gl

[summer dirge]

smth isn't making sense in my head

[wraith stratus]

alpha is the least upper bound right

so every other upper bound must be larger than alpha

is that clear?

[summer dirge]

yes

[wraith stratus]

now suppose that there are no elements in A intersect (-e + alpha], this thing is the empty set

is that part ok?

[summer dirge]

sure

[wraith stratus]

but then -e + alpha is now an upper bound

[summer dirge]

yes, I agree

[wraith stratus]

since there's nothing to the right of -e + alpha

[summer dirge]

but smth doesn't make sense to me

we're saying that there's an x in U such that [a,x] is compact; why do we know that x is in U

how do we know that the interval [a,b] is "mostly" compact, at the very least?

"mostly" meaning that most of the interval is definitely compact, since U is just the open set that covers the end

[wraith stratus]

https://cdn.discordapp.com/attachments/490557019623915520/1246682444011274300/image.png?ex=665d4700&is=665bf580&hm=bbf891d8b3dc46c9232e9550b4eeecb61eb65bcd8f4e8272d09a4e867c1b86fc&

[summer dirge]

I feel like I'm being extremely stupid rn

[summer dirge]

that's afterwards though

I agree that [a,x] is compact when we establish that x is in A

[wraith stratus]

so far we haven't shown that [a,x] is compact, all were doing at this point is arguing that alpha is a member of A

(if we can show that, then [a,x] will be closed

[summer dirge]

oh yes, I misspoke

I should've said that [a,x] can be covered finitely by elements of O

[wraith stratus]

Can you rephrase your question, I'm out of oxygen in brain (I repped 4 plates btw)

[summer dirge]

damn

uhh

how do I phrase my question in a way that is well put together

lemme see

wait

argh

lemme think some more lol

@wraith stratus nvm I 🔡'd myself

LOL

I get it now

oh but one thing, we are showing that [a,x] is compact, are we not?

[wraith stratus]

yeah

what is your definition of compact

nvm finite subcover

[summer dirge]

yeah

[summer dirge]

so we're showing that [a,x] is compact, but then we show that alpha is in A, so [a,alpha] is compact

then we show that alpha = b, so [a,b] is compact

yes?

[wraith stratus]

we get that [a, alpha] has a finite subcover since alpha is in A, that's the first part

[summer dirge]

yes, so [a, alpha] is compact

[wraith stratus]

yea

[summer dirge]

okay, I think we're good then

[wraith stratus]

This is the next part now

ABCD

[summer dirge]

no, I've understood the second part lol

this was the only thing blocking me from understanding the proof

today I have shown how bad I am at analysis

[wraith stratus]

donowalled by supremum

[wide tartan]

HELLO

[summer dirge]

hi smay

[wraith stratus]

[wide tartan]

i need help with a math question

[wraith stratus]

I manage to do this everyday

[summer dirge]

same

[wraith stratus]

what is your doubt maam

[summer dirge]

smayday!

[wide tartan]

1+1=??????????????

[summer dirge]

mayday?

[summer dirge]

0

char 2 >>>>

[wraith stratus]

purple

[wide tartan]

TRUE DO EVERYTHJNG MOD 2

so based

[rose sigil]

that implies ?????????????? = 2

[summer dirge]

but 2 = 0

so everything = 0

[wide tartan]

can i help with the mountains question now

[wraith stratus]

?^14 = 2

[summer dirge]

since everything = ???? = 0 implies that 2 = 0

sotrue

[summer dirge]

me??

"the mountain's question"

LOL

,av

[ocean seal]

higher___'s Avatar

Click here to view the image.

[rose sigil]

,av smayday

[ocean seal]

smayday's Avatar

Click here to view the image.

[wide tartan]

heine borel theorem

[wraith stratus]

,av slayla

[summer dirge]

cat reading book

[ocean seal]

slayyla's Avatar

Click here to view the image.

[summer dirge]

yes!

[wraith stratus]

girl dms now

[summer dirge]

I am turbo bad at analysis, it seems

[rose sigil]

[wide tartan]

this is a topology fact and it’ll be used everywhere so just rember it

[summer dirge]

I think my Heine-Borel doubt is cleared now though

[summer dirge]

yeah, I'm aware of its usefulness

how've you been smay

[wide tartan]

yeah, I'm aware of its usefulness

yeah, I'm aware of its usefulness

yeah, I'm aware of its usefulness

yeah, I'm aware of its usefulness

[wide tartan]

i’m good hbu

[summer dirge]

what

[wide tartan]

idk i’m going crazy

[summer dirge]

mostly okay, sometimes bad, but we'll manage

[wraith stratus]

yeah, I'm aware of its usefulness

[rose sigil]

i am unaware of its usefulness

[summer dirge]

am I being booleed

[wraith stratus]

I am unaware

[summer dirge]

I am

[wraith stratus]

I am kenough

[wide tartan]

why is your name catgirl pee? do you like catgirl pee? or are you trying to convey yourself as pee because you think others want catgirl pee?

[rose sigil]

i like catgirl pee

[wraith stratus]

I have a big fucking piss fetish

[wide tartan]

i see

[wraith stratus]

but that's unrelated to my choice of name

This was just a coincedence

[summer dirge]

p norm...

I forgor your old username already

chebyshev's smth smth p norm

[wide tartan]

oh it’s a reference to the weierstrauss pee function

[rose sigil]

m8of48…

[wraith stratus]

Infinite

slayyyyyyla

[summer dirge]

grief beyond belief

I should return to my first username

[wide tartan]

ing

[summer dirge]

no

[wraith stratus]

become a cat instead meow

[summer dirge]

grief beyond belief

[wide tartan]

meow

[rose sigil]

ing was a good name

[wraith stratus]

[summer dirge]

do I return?

is higher! not a good name

[wide tartan]

it is but ing is iconic

higher is a serviceable name of course

[summer dirge]

I would have to change the meaning of the name then

[wraith stratus]

I have a proposition for you

[wide tartan]

is it one of marriage?

[summer dirge]

I think... too many people on this server know me by higher! now though...

[wide tartan]

not that that’s how you use that word

though i guess it is

[wraith stratus]

Get me a fuckin fatty, no vvs hoe shit

[rose sigil]

LOL my measure theory prof uses it like that

like that’s one of his running jokes

“i’ll proposition you”

[wide tartan]

i’m workin on it

[summer dirge]

will my channels become Syrex channels too

[rose sigil]

hopefully

[summer dirge]

tbh, I don't mind

this is nice

[wide tartan]

the hrt is coming end of june

btw

feelsgood

[summer dirge]

hrt?

[wide tartan]

dwai

[summer dirge]

dwai?

am I the only clueless one here

[wraith stratus]

对？

[summer dirge]

[wraith stratus]

ok I have a question

is hrt just an umbrella term for any supplemental hormone intake?

[summer dirge]

oh, that hrt

[rose sigil]

yea

[summer dirge]

got it

[wraith stratus]

so if I take test, I'm on hrt?

[simple tapir]

hell yeah

[rose sigil]

ig so but then you’ll sound like a fake natty if you say that

[wraith stratus]

you think so lowly of me that'd I claim I'm a natty?

[rose sigil]

(yes i know some gym bro terminology)

[wraith stratus]

that hurts...

[rose sigil]

listen i’m just telling ya what it would sound like

[wraith stratus]

@summer dirge so will you accept my proposition?

[wraith stratus]

I'm ugly not natty and I'm proud

[rose sigil]

i’m ugly and i’m proud

[wraith stratus]

Someone save that shit the next time slayla calls herself hot

[wide tartan]

same tbh

[rose sigil]

fuck you

[wraith stratus]

fight me bitch

[summer dirge]

what proposition

[rose sigil]

ok

i’m in

[wraith stratus]

I haven't made it yet do you accept

[summer dirge]

no

[wraith stratus]

unfortnite

[summer dirge]

you're gonna end up murdering me

istg

[wraith stratus]

?

I was gonna propose

[summer dirge]

[wraith stratus]

if I can rep 2 plate Romanians, you change your name

if I can't you can choose some punishment for me

[summer dirge]

no

I don't accept

[wraith stratus]

pusc

[summer dirge]

pusc?

[wide tartan]

lmao

[wide tartan]

sound it out

[summer dirge]

what're these abbreviations

[summer dirge]

it doesn't make any sense to me

pusc?

[wraith stratus]

this guy's so innocent

[summer dirge]

am I being made fun of again

[wide tartan]

no

[summer dirge]

I don't get it

[summer dirge]

wdym

[wide tartan]

though it is funny how you don’t know the abbreviations

[summer dirge]

idk, I've never seen these abbreviations before

[wide tartan]

do you have other mathematics questions

[rose sigil]

yea

[wide tartan]

okay you should ask

[summer dirge]

not immediately, but likely within ~30min lol

[wide tartan]

ok

[summer dirge]

oh let layla ask

she has a question

[wide tartan]

ask me anything

[rose sigil]

hmmmm

[wide tartan]

emote unrelated

[summer dirge]

how was your day

that is my question

[wraith stratus]

can I ask you anything?

[rose sigil]

what have i been wondering about lately…

[wide tartan]

of course

[wraith stratus]

thank you

[wraith stratus]

When you ask for permission to do something, do you say "smay I?" In lieu of "may I?"

[rose sigil]

i want to learn about the dirichlet hyperbola method

[wide tartan]

no, but it’s even funnier when i ask “may i” because people sometimes know me as may

[rose sigil]

can you teach me smay

[wide tartan]

so it balances out

[wide tartan]

no, i don’t know enough analysis to teach you that

[rose sigil]

[wide tartan]

dirichlet’s got nothin on you though so you’ll probably get through it very smoothly

[summer dirge]

someone call in Deltoid

I see analysis mentioned

[rose sigil]

yea i haven’t even started reading about it

it was just on my to do list haha

[wraith stratus]

Update I couldn't rep 2 plate Romanians, daddy broke my back

[summer dirge]

when you have a bad day, is it a mayday?

[wide tartan]

since my mountain friend couldn’t choose a punishment for you, smay I choose one?

did the pun just for you

[wraith stratus]

I accept

[rose sigil]

[wraith stratus]

Smay I know what are your terms are

[summer dirge]

hey excuse me, I'm just "mountain friend"??

[wide tartan]

they’re usually first order, i’m just that notable ;)

[wide tartan]

the one and only!

[summer dirge]

okay I'm gonna get try to understand the next thm

will come back once I've learnt for the nth time today that I suck at basic analysis

[rose sigil]

i also want to learn more about generating functions but i don’t have any questions in mind

[simple tapir]

oooh fun

[summer dirge]

uh, should I close this channel?

actually no

[wide tartan]

no of course not

[summer dirge]

I'll let you guys talk

[wide tartan]

lol

[summer dirge]

[wide tartan]

i don’t have discussion still so this is how i’m getting my dopamine today

jk i’m healthy and go outside occasionally

[rose sigil]

i’m not

[wide tartan]

which i can’t say about everyone in the math discord server

[wraith stratus]

[wide tartan]

lmfao

[wraith stratus]

I gym everyday and am bottom health

I'm trynna be like u

[wide tartan]

that’s okay i bottom everyday and am gym health

[rose sigil]

i rot in my room all day

[wraith stratus]

ain't no way youre bottoming daily

[rose sigil]

actually i rot on the couch in my living room all day

[wide tartan]

lmao that’s right, but it’s okay because there was no truth value to the entire thing i said anyways

[wraith stratus]

pusc

[summer dirge]

okay I immediately have a new question lmfao: in the Theorem, is B a subset of R^m and x an element of R^n, like they were in the preceding comments?

[summer dirge]

hey, you can't call me out like this...

[wide tartan]

yes

[summer dirge]

actually, I go out for walks sometimes

does that count

[summer dirge]

thank you smay

[rose sigil]

i do math outside sometimes

[wide tartan]

the point is that they’re saying something about the {x} times B that’s stronger than compactness

[wide tartan]

literally the best feeling

[rose sigil]

yea it’s nice

on a big outdoor chalkboard

:3

[summer dirge]

is it time for me to go do math at the park?

[wide tartan]

you could

[summer dirge]

maybe I haven't been giving outdoors math a chance

[simple tapir]

it's very nice

[wide tartan]

i do math in a hammock sometimes

[summer dirge]

all of my outdoors math experiences have been trying to do math on a vehicle (train or bus)

it never worked out

I once took notes for an online lecture whilst walking in the rain though

[rose sigil]

is that outdoor

[wraith stratus]

I do math isolated alone in my house whilst depressed, it's also nice

[summer dirge]

this did not work out well

[summer dirge]

yes, because I said so

[rose sigil]

well yea i do that too. just also sometimes do the same thing on the porch instead

[wraith stratus]

can't relate

[summer dirge]

if I'm even a bit depressed, I can't do math at all

[simple tapir]

i wrote like a third of my senior thesis on a bench under a tree, it was more pleasant than being inside, i think

[summer dirge]

which is mostly why the last month has been a bit slow for me

[wide tartan]

that sounds way healthier than how i spent my last semester

[simple tapir]

oh most of the semester was spent crying indoors, but the bench was nice

[wide tartan]

oh okay so about the same as me then

[simple tapir]

hell yeah

[rose sigil]

sometimes getting lost in something and ignoring all my responsibilities helps and math is that something sometimes

[summer dirge]

I don't think I could do this

[wide tartan]

its okay, now i feel much better about a ton of things in my life that i felt awful about during that time

[simple tapir]

that's good!!

[wide tartan]

which has caused me to be way more outdoors

feels very good

[rose sigil]

2 am and i haven’t gotten out of bed yet

[summer dirge]

responsibilities and commitments give me so much procrastination anxiety

[simple tapir]

the hard part is that math often is the responsibility that I want to ignore

[summer dirge]

which would completely negate my ability to do math

[wide tartan]

do you plan to before you sleep?

[rose sigil]

well i went to bed at like 1 pm and got up at, idk, 10?

so i won’t be sleeping for a while

i’m a very functional person as you can see

[wide tartan]

honestly, this was me a few weeks ago

that is tough to deal with

[rose sigil]

what no bf does to a mfer

[wide tartan]

happy 2 am

lol true

[summer dirge]

late at night is when all the thinking happens

[wide tartan]

yes, usually

[summer dirge]

it's common for me too

some of the discussion users can attest to that

[wide tartan]

lol

[summer dirge]

I should open help channels more often, if it's gonna turn into a third discussion channel

I like these

syrex stopped opening channels, so I guess I'll have to do it myself

[summer dirge]

actually, I'm worried that the mods will crack down sooner or later

[lone heart]

@summer dirge Has your question been resolved?

[summer dirge]

✅ or ❌?

okay, ❌ it is

,ti smayday

[ocean seal]

The current time for smayday is 01:31 AM (EST) on Sun, 02/06/2024.
higher___ is 1 hour ahead, at 02:31 AM (EDT) on Sun, 02/06/2024.

[summer dirge]

same time as me...

all of us should really go to bed

[wide tartan]

why are you edt

[summer dirge]

we're in EDT time rn, no?

[wide tartan]

WHY AM I EST

lmao

[summer dirge]

yeah, you need to change

!

[wide tartan]

how do i change it

[summer dirge]

uhh

[wide tartan]

,ti --set EDT

[summer dirge]

,ti --set

that's how

[ocean seal]

User cancelled selection.

Jun 2, 2024, 6:32 AM

Your timezone has been set to EST5EDT!
Your current time is 02:32 AM (EDT) on Sun, 02/06/2024.

[summer dirge]

,ti smayday

[ocean seal]

The current time for smayday is 02:33 AM (EDT) on Sun, 02/06/2024, the same as higher___!

[wide tartan]

thx

[summer dirge]

wait lemme test smth

test message (edited out)

ah, okay

oh, you can get it in

okay, time to delete

[summer dirge]

okay, time for this channel to die

to everyone who reads this, have a good day/night!

.close

[lone heart]

Channel closed

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[lone heart]

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Remember:
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• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
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[swift spire]

Hello, please bare with me and try to make it as explainable as possible

[swift spire]

is this the correct way to decide how to write inequalities?

how do i know if it’s 0 > x and x > 0 or if it’s 0 < x < 0

[raw stream]

0<x<0 makes no sense

[swift spire]

ignore the zeros i’m saying

how do i know if it’s a > x and b < x or if it is a < x < b

i also have to draw this table which i don’t completely understand

[tribal field]

Somehow, I think the table makes it worse

[swift spire]

what do you mean

i feel like it’s necessary as well but my teacher said i have to write it in the exam and i literally can’t find a single piece of evidence that it even existed before she talked about it

[tribal field]

I think using a table makes this infinitely worse to understand

[swift spire]

i’m not finding any youtube videos, im asking and no one knows and here i am on discord and yet people still don’t know

[swift spire]

i knowww

[tribal field]

I don't think such a method exists????

[swift spire]

but i have to use it

[tribal field]

For a good reason too
Bc using a number line is older and easier

By a lot

[swift spire]

me neither i’m convinced she literally made it on the spot and it’s not even in the book

[tribal field]

I don't get the table either?????

[swift spire]

do you have a solution for this tho like is there a trick

[tribal field]

The problem is that Im not even sure what the problem is

But if I had to guess

Uh
Lemme relabel

Bc using x in two places is confusing

[swift spire]

fair enough

[tribal field]

If I had to guess
x<a OR x>b

[swift spire]

where

[tribal field]

Wdym where?

I'm guessing that your teacher is asking for the values of x where y is positive

And the table is a really weird way of showing where y is positive and negative

[swift spire]

oh

[tribal field]

Everything to the left of a is positive (for y)
OR
Everything to the right of b is also positive (for y)

Thus, x<a OR b<x

[swift spire]

so we can’t use this trick?

ignore the table for now bc i know how to draw it based off my answers but i’m not sure how to write the inequalities

[tribal field]

I assume the open circles are saying something is an open set
But I don't know which end is which, so I guess???

[swift spire]

like the inequality answers

[tribal field]

I have
NO IDEA
what's happening here

[swift spire]

let me try to find an example

[tribal field]

Sorry
It's Or not And

Oops

[swift spire]

something like this

[tribal field]

This may be a sign to go to sleep

[swift spire]

😭😭😭😭😭 i stayed up until 12am last night tryna undersrand now it’s 11am and i still don’t understand

[tribal field]

No sorry
I mean for me
It's 4 AM

[swift spire]

ohhh

[tribal field]

This should be x<a or b<x

Not and

[swift spire]

if you need to go to bed that’s totally fine dw i’ll ask someone else

[tribal field]

Definitely not and

It's not like I'm going to sleep anyways

[swift spire]

yeah ik cuz it’s 2 answers

[tribal field]

Are you only dealing with quadratics?

[swift spire]

i don’t think so.. i’m still confused if it was quadratic or normal

[tribal field]

Those are both quadratics

[swift spire]

ah yeah

[tribal field]

Essentially, it wants you to state the x values for which the inequality is true

Since for the first one, you've set it to be when the quadratic is positive
That means it's for when the line is above the x axis

[swift spire]

but both quadratics are positive it’s just that the first inequality is > and the second is <

[tribal field]

The second is asking where the quadratic is negative

In the second one, the colored area is below the axis
In the first, it's above the axis

[swift spire]

wait so long story short, if the inequality has > then it’s x < a and x > b and then if the inequality has < we just leave the sign as it is and make it a < x < b

[tribal field]

Only if the first coefficient is positive

And it's a quadratic

[swift spire]

what if it’s negative? do we do the opposite? so if it’s negative and has > then it’s a < x < b and if it’s negative and has < then it’s x < a and x > b???

[tribal field]

Yep

[swift spire]

also wdym when u say quadratic, like if the coefficient has a square root?

[tribal field]

As long as it's a quadratic

No like

ax^2+bx+c

Anything in that form is fine

[swift spire]

ah so anything in that form is quadratic right

[tribal field]

Yep

That's what it means to be quadratic

[swift spire]

ohhhh okay thank you so much for ur time!!

.close

[lone heart]

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[lone heart]

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[fluid niche]

What will I do here? I tried to integrate the expression inside and found 4. But the answer is not 4. Can someone make a solution on a piece of paper and post a photo?

[lone heart]

@fluid niche Has your question been resolved?

[gray isle]

how are you getting 4

[gray isle]

you're not integrating correctly

[fluid niche]

How am I going to integrate?

[gray isle]

integration by parts

[fluid niche]

Should I solve x and f''(x) parts?

my english is bad sorry btw

[gray isle]

"integration by parts"
all three words together is the technique that should be applied here

[fluid niche]

I have no idea about that Subject. Is there any other solution?

[gray isle]

not that i can think of

[fluid niche]

Oh okay

thanks anyway

[lone heart]

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✅

@fluid niche Has your question been resolved?

[lone heart]

@fluid niche Has your question been resolved?

[lone heart]

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[lone heart]

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• Show your work, and if possible, explain where you are stuck.
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[timid kelp]

hi how to do part e

[timid kelp]

I did all the rest

I have a ti84 btw

calc allowed

but how do I find smallest value of q

for the eqaution to have complex roots

[timid kelp]

@craggy dagger sorry for early ping but in a slight hurry

[lone heart]

@timid kelp Has your question been resolved?

[lone heart]

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Remember:
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• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
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• Be polite and have a nice day!

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[fleet owl]

Hello

[fleet owl]

Can I do it jere

[lethal belfry]

yes

[fleet owl]

Ok

I need help with learning stuff on my retake work

Can you help

@lethal belfry

[small lance]

Just post it

[lethal belfry]

I kind of have some work to do now, so I can't, but someone will be able to

[broken charm]

post it and we ll be able to help

[fleet owl]

Ors a bunch of questions

It’s

[broken charm]

doesnt matter

[fleet owl]

Here the first ones n

@broken charm

[broken charm]

alr

[broken charm]

so social studies is the 1/4 of the total of students

[fleet owl]

Yes

[broken charm]

well whats 1/4 of 200

[fleet owl]

How do I find that out?

That’s what I need to know

Ion how to

Get it

[broken charm]

well its 1/4*200 so 200/4 so 50

[fleet owl]

I just do 200 divided by the bottom fraction?

Numerator

To find it?

That makes a lot more sense

Let me try that on the next question there gonna be a dif one in a couple minutes dif formula to solve

Now this one different

@broken charm

[broken charm]

12.5% is 12.5/100

so 12.5/100 *80

[fleet owl]

WJAT

My teacher is stupid for not teaching me this way

I’m 100 percent gonna pass with the new method

[broken charm]

nice

[fleet owl]

Wait

I get 0.125

When use calculator

For it

@broken charm

[broken charm]

12.5/100 is 0.125

so 80*0.125

or 8*1.25

which is 10

[fleet owl]

Oh

I see

[fleet owl]

How?

[broken charm]

how do you do 8*1.25

i mean you can use a calculator i gues...

[fleet owl]

Wait

You do 8 x 1.25

[broken charm]

yes.

[fleet owl]

But then I’m sorry how do we get it 8

?

[empty cedar]

80 * 0.125
(8 * 10) * 0.125
8 * 1.25

0.125 * 10 = 1.25

[fleet owl]

Oh

Ok

I see it

[lone heart]

@fleet owl Has your question been resolved?

[fleet owl]

Need help with one more

That’s all

I was doing the hw

But I need it with one more

@broken charm @empty cedar

[empty cedar]

im at the top of olympus mons right now

later

ok sure what is it

[fleet owl]

I’ll send

[empty cedar]

ok so you need to make a circle graph based on the data

[fleet owl]

Yes

[empty cedar]

!status

[lone heart]

What step are you on?
1. I don't know where to begin.
2. I have begun but got stuck midway.
3. I got an answer but I was told that it's wrong.
4. I got an answer and would like my work checked.
5. I have a question about someone else's work/solution.
6. I have completed the problem and don't need help anymore. Thank you.
7. None of the above

[fleet owl]

7

Ion

[empty cedar]

ok what is your status then

[fleet owl]

Ohh

Prob 2

Yeah

2

[empty cedar]

ok what have you done

[fleet owl]

I added them Al up to 200

That’s what it equals I think

But

[empty cedar]

ok so 200 is the total

[fleet owl]

When I started dividing 54/200 to find the correct percent to put on the graph

Then it start giving me decimals

But

There no decmails on the graph

Circle

[empty cedar]

multiply the decimals by 100

thats the percent

100/100 = 1 = 100%

50/100 = 0.5 = 50%

example

[fleet owl]

So do 54/200

That’s the first one

[empty cedar]

are you telling me to do it

or

[fleet owl]

I finished the retake work

I did what you told me

[fleet owl]

No

It was yes or nah lol

Thanks btw

Saved me on that one

I’m done

[empty cedar]

close the channel, done

[lone heart]

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Remember:
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• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

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[zealous gate]

any idea why b is 800pi instead of 1000pi?

as frequency = 1/p and we know frequency is 500, p should be 1/500. After that we use the equation to find b, 2pi/b=1/500. rearrange and its 1000 pi

[lone heart]

@zealous gate Has your question been resolved?

[lone heart]

@zealous gate Has your question been resolved?

[proud breach]

I think it should be 1000pi Hz

[proud breach]

maybe the answer is wrong

[lone heart]

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[zealous gate]

alright appreciate

[lone heart]

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[hasty lava]

I don't know if I'm correct

I have a calculator exam tomorrow I plan on studying until early darlylight

[earnest saddle]

,rotate

[earnest saddle]

You're correct

Although I didn't get your reasoning

[hasty lava]

I know is when there is lines on the first triangle as you can see the two lines I know that the two angles are equal to 25

A triangle is 180 degrees

25+25 = 50 and [180-50] 130

A straight line is 180

[earnest saddle]

why did you say circle is 360

[hasty lava]

Angles around a point add up to 360

it's just my brain of short cutting things

[earnest saddle]

But we didn't use it here, did we?

[hasty lava]

No

I write things to recall them because I forget formulas easily

Sorry 😔

My teacher left me when I needed her the most for tomorrow

As if I feel like I'm not prepared

but you're there

Thank you 👍

This is a question I'm gonna solve it once I do I'll send my answer to you sir please verify if it is correct

[lone heart]

@hasty lava Has your question been resolved?

[hasty lava]

I am having a hard time with one question apparently 😭

,rotate

[hasty lava]

@earnest saddle

Help

[earnest saddle]

with which part?

part b?

91 that you got is correct

[hasty lava]

I overcomplicated it

I thought it was trying to make me prove it was equal

[hasty lava]

X=40

[lone heart]

@hasty lava Has your question been resolved?

[lone heart]

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[lone heart]

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• Show your work, and if possible, explain where you are stuck.
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[stiff willow]

Hiiii so I wanted to ask if anyone could explain me how does this exercice work (badly translated by me):
We consider this figure and the angles alpha (60°) and beta (45°) are given. Determine the angle ABC.
I apologise for uhh all the weird process on the sheet and like yeah the theme of the chapter is vectors, so I guess we must use like magnitude and some vectors rules maybe to find it. However I'm completely lost in all of this.
Please thank you very much if you manage to help me, it really triggers me not to be able to find out one exercise. Btw sorry for my bad english 💀

[stiff willow]

oh forgot to add but i'm in first year of high school!

for the level

<@&286206848099549185>

[lone heart]

@stiff willow Has your question been resolved?

[lone heart]

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[nova shell]

hello

[nova shell]

i need some clarification in complex numbers

[lone heart]

No need to ask “Can I ask…?” or “Does anyone know about…?”—it’s faster for everyone if you just ask your question! See https://dontasktoask.com/

[ocean seal]

SWR

[nova shell]

bruh not that XD

[main junco]

$i = \sqrt{-1}$

[ocean seal]

w

[nova shell]

Bro

[main junco]

ask away

[nova shell]

ik this

[limpid turret]

yeah go ahead and lay it on us (watch it be some residue-theorem pilled question that I forgot completely)

[nova shell]

well in an exercise they said, we have m a complex number, with m in C - R

[limpid turret]

What is IR?

[nova shell]

so does that mean that m is a pure imaginary number

[royal grail]

I think they meant iR, i times by real R

[nova shell]

real numbers group or idk what is it in english, i study maths in french

[nova shell]

no i meant real R here*

[royal grail]

$i \mathbb{R}$

[ocean seal]

lgkoo

[nova shell]

anyways does that mean m is in iR

[royal grail]

bruh the edit XD

[vale crag]

no

[nova shell]

just to clear things up

[royal grail]

all good lol

[nova shell]

bcs its in C - R

[limpid turret]

$\bC\setminus \bR$?

[nova shell]

what?

[ocean seal]

SWR

[nova shell]

Yes

[vale crag]

4 + 3i isn't purely imaginary, but it's in C \ R

[nova shell]

c without r

[nova shell]

so is that equivalent to iR, pure imaginary numbers with "i" with them

[limpid turret]

no

"complex numbers that are also not real numbers" is different from "pure imaginary numbers"

[nova shell]

ok ok so thats mean that im isnt a real number then

[limpid turret]

4+3i, as playtpus shared earlier

[nova shell]

kkk so if we multiply m with i, it wont turn into a real number, like i x i

[vale crag]

purely imaginary numbers are inside C \ R, the reverse is false

[vale crag]

in general it won't yes

[nova shell]

alright thanks for clarification

i have a national exam in a week

so i have to get ready

[vale crag]

gl

[limpid turret]

only if m happens to also be pure imaginary

[nova shell]

thx u too its my last year in school and before university

[nova shell]

hmmmm yea ik if m in iR then i x m is in R

anyways thx for help have a nice day or night

[lone heart]

@nova shell Has your question been resolved?

[lone heart]

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Remember:
• Ask your math question in a clear, concise manner.
• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

Read #❓how-to-get-help for further information on how to ask a good question, and about conduct in the question channels.

[flat spoke]

uh

[torpid dirge]

uh

[royal grail]

yeah post your question here

[flat spoke]

HI

OK

[torpid dirge]

hi

[flat spoke]

are

you gonna help me

?

or do i need to wait

or something idk how it works

[torpid dirge]

if i feel like

[flat spoke]

wut

if you feel like doing so?

so

that solely depends

on

[flat spoke]

are you the one whos gonna help?

[torpid dirge]

people volunteering

[royal grail]

^

[flat spoke]

can

[royal grail]

I can help with you on this

!status

[lone heart]

What step are you on?
1. I don't know where to begin.
2. I have begun but got stuck midway.
3. I got an answer but I was told that it's wrong.
4. I got an answer and would like my work checked.
5. I have a question about someone else's work/solution.
6. I have completed the problem and don't need help anymore. Thank you.
7. None of the above

[flat spoke]

please help

7

[torpid dirge]

AX, do u know the equation of that

[flat spoke]

no

[torpid dirge]

whats the general equation of a circle

ok im gonna play games but

[flat spoke]

omg

whYD IT

COME OUT LIKE THAT

[torpid dirge]

essentially u need to find the equation of the line AX

and the equation of the circle

[flat spoke]

but howw

[royal grail]

you might find this useful

cuz then all you need is trig

[torpid dirge]

u can find AX using the fact that it passes through the point 16,0

sorry its AB not AX, i read it wrong

then see at what value of the circles radius it would be tangent to it

aka they should meet at exactly one point

then once u have the equation of the circle u should be easily able to find p

bye bye

[devout lily]

please help

[flat spoke]

thank you

[royal grail]

the above by esthesia works, but it might be easier to find the radius r of the circle by simply using trig here

[torpid dirge]

#help-46 go there

[flat spoke]

um is the top length 16 cm or what

[devout lily]

sorry

[flat spoke]

im confused, um is the top length 16 cm

[royal grail]

AB is 16 units (not necessarily cm, could be mm, m, km, but doesn't matter)

[flat spoke]

oh okkk

thank you

[flat spoke]

ok uh do i use y = mx + c for equation of line of tangent

[torpid dirge]

sorry, that and the 30 degrees

[flat spoke]

? @torpid dirge

[torpid dirge]

i guess yea

[flat spoke]

oh ok

[torpid dirge]

in this case u have

y=m(x-16)

where m is um

idk draw a triangle and figure it out probs

[royal grail]

m would be tan30

but I do think doing this is slightly tedious

[royal grail]

@flat spoke do you want to try doing it with trig instead?

[flat spoke]

no i got it

[torpid dirge]

i like drawing

[royal grail]

nice

[flat spoke]

thaaaaaanks

[lone heart]

@flat spoke Has your question been resolved?

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• Show your work, and if possible, explain where you are stuck.
• After 15 minutes, feel free to ping <@&286206848099549185>.
• Type the command .close to free the channel when you're done.
• Be polite and have a nice day!

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[dusky rock]

Hey, I am working on the following problem. I think I have the solution but, I am not sure if it is correct. There are two things specifically that I am not sure about. (Note: I am self learning this topic)

(1) I am not sure if I defined the first premise correctly. According to Chegg, the first premise I defined is (nor r or not f) -> (s and l). But, this would imply that if it rained and it's not foggy, the sailing race and lifesaying demonstration will happen. But, that seems incorrect.
(2) I am not sure if I can do the simplification in step 5. In the YT video from Kiberly Brehm and the textbook, they only simplify when the statement is standing alone. I am not sure if it is legal to simplify when it it's in if then clause.

Any help is appreciated!

[lone heart]

@dusky rock Has your question been resolved?

[dusky rock]

<@&286206848099549185> Just checking in once to see if anyone is available to help

[lone heart]

@dusky rock Has your question been resolved?

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@dusky rock Has your question been resolved?

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[ebon ginkgo]

how can you differate them?

vectors

[balmy grail]

You can ignore the vectors (in this case) and just look at the right side, how many dimensions does a plane have vs a line?

[balmy grail]

What level math is this?

!status

[lone heart]

What step are you on?
1. I don't know where to begin.
2. I have begun but got stuck midway.
3. I got an answer but I was told that it's wrong.
4. I got an answer and would like my work checked.
5. I have a question about someone else's work/solution.
6. I have completed the problem and don't need help anymore. Thank you.
7. None of the above

[ebon ginkgo]

grade 12 math

vectors

[ebon ginkgo]

3 for plaine

2 for line

but i used that logic and it didnt work

[balmy grail]

So a plane exists in 3d space, but it is a 2d object

Similarly a line is a 1d object

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@ebon ginkgo Has your question been resolved?

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