#help-4
1 messages · Page 12 of 1
anyway you have to claim your own channel
????
oh they were spamming scam links
and they left
i was here first
yeah but unfortunately their name got put on the channel
then they used like somethin
it's a technical thing
oh ok
oh just saying it had some corn
i mean... 🏳️⚧️ but also just go to channels and roles
idk
and update your pronouns there
and because they left, this channel will lock eventually
ok
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.
bum chicken
y12 is kinda hard
bro
ts isnt even the hardest thing uve done u have done more difficult (vectors??????........!!!!!!!!)
Water
convegence
are you doing well in your courses
no i got blasted by my math final yesterday
@wet tundra Has your question been resolved?
yea
logs are lowk harder than vectors
and proofs
nah i think ur just cooked 😭
Closed due to timeout
Use .reopen if this was a mistake.
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.
Guys, I need help identifying the set of functions.
which funcs
!xy
Please show the original problem, exactly as it was stated to you, with the entire original context. A picture or screenshot is best. If the original problem is not in English, then post it anyway! The additional context might still be helpful. Do your best to provide a translation.
This is funcs
"Identify it"? As in what shape it represents?
these X's hurt my soul
I think it belongs to R except 1
Yes that's most likely the domain
So you want the domain and not the shape?
I also want its shape
Lmao w graph (x^2+x-1)/(x-1)
I think we need a tangent line to the function.
Well what do you usually do to get the tangent line of a function that is not standard then?
Well, in the exercise I'm doing they asked me to show that y=x+2 is an inclined asymptote of a function.
an inclined asymptote is typically not understood as a tangent line
@hearty kindle Has your question been resolved?
If I want to enter the line y=x+2 in the graph as an inclined asymptote
Lmao w graph y= (x^2+x-1)/(x-1), y= x+2
Thinks
the two functions look close to each other, what if we subtract them?
find their difference
It is close to the function because it may be asymptotic.
Oh, you mean the function?
Yes, so they're saying to subtract the functions.
If it comes out to be 0, then you've proven that line is an asymptote.
Can you tell me why that is so?
Maybe because we did the subtraction between the function and the line y=x+2
I have no idea
Oops, maybe I'm hallucinating
Ignore that
What level of education are you studying at?
Yeah sorry, my method is to manipulate the first expression so you can get the asymptote in there. If you observe carefully you can see that:
$\frac {x^2+x-1}{x-1}$ is actually nothing but $(x + 2) + \frac{1}{x-1}$
Executor (ask on server b4 DM)
Now we can just take the limit of the term 1/(x-1) as x approaches infinity, so it becomes 0
nah its right $\lim_{x\to\infty} f(x)-a(x)=0$ then $a(x)$ is an assymptote of $f(x)$ (and analogously with $-\infty$)
VincentBH
Yeah I knew that lol but second guessed myself a bit because of the ❓
if you subtract $x+2$ then you get something that goes to 0
But this method is valid as well
VincentBH
it is exactly the same haha
You are right
Sorry, don't think that's relevant.
but thats a good method to find what the assymptote has to be
Yeah, if you weren't given it 
Yes sorry
I have a problem with the change table and also with splitting the function
What is "the change table"?

Splitting the function I can understand might be a little hard to visualise, but you're given what you want it to look like already, so that should make manipulating it easier.
Just add and subtract x+2

It is a table that shows you how the function will change, whether it is increasing or decreasing, but you must first split the function.
Well we already split the function.
Now to find its nature we just have to differentiate.
If you know a table of signs, you should study the sign of the function you have split.
So you're saying to find where the function is increasing or decreasing you put negative numbers in progressively and then positive numbers in progressively to see how the values change?
Or is there a different meaning to "table of signs"?
Though if it is what I just explained it's a pretty bad method lol
This is an illustrative example.
So you do have to differentiate lol.
Could you differentiate the function given to us then?
What do you mean by separation?
Where did I say separation
I said take the derivative
Oh are you using a translate app?
Yes, sorry I misunderstood.
Yes, I am still learning English.
@hearty kindle Has your question been resolved?
Closed due to timeout
Use .reopen if this was a mistake.
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.
During my last calculus 1 exam I answered the question regarding this function with “the function has 2 asymptotes”, I would like to ask if someone could please tell me if my answer is correct or not.
From the graph it seems to me that I see 2 oblique asymptotes but I would like a confirmation if it is possible to.
correct, the oblique asymptotes are given by $y = \sqrt{x^2} = |x|$
south
and that's made up of two straight lines, y = x and y = -x
Closed by @dreamy trellis
Use .reopen if this was a mistake.
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.
so I have this proposition that I wanted to prove
here's my work
I'm fairly sure this works, but I'm putting this here in case somebody thinks there's a mistake
@next vortex it looks like your images aren't coming through for me. I don't know if it's just me. I only have the first image in your second post.
if you click on the image it shows up for me
huh. the 2nd image is bugging for me
Though (b) and (c) are not really about Lie groups, just basic group theory
I can't upload it properly
well yeah
I've not actually done any group theory prior to Lie groups though
so it'd be nice to check if I got those right too
I can't promise that I've looked through every algebraic step 😅
that's okay, I feel confident in the algebra 
FYI: there's an outage affecting embeds
Thanks for letting me know. I probably am just touching a server that isn't working for those images.
I'm gonna leave it here for another 5 min
and if no other words are said, I'll close 
.solved
Closed by @next vortex
Use .reopen if this was a mistake.
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.
Channel closed due to the original message being deleted.
If you did not intend to do this, please open a new help channel,
as this action is irreversible, and this channel may abruptly lock.
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.
<@&268886789983436800>
Channel closed due to the original message being deleted.
If you did not intend to do this, please open a new help channel,
as this action is irreversible, and this channel may abruptly lock.
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.
just wanna make ure im not trippin
but the textbook says vertical stretch scale factor 1/4
it should be compression right?
well stretching by a factor of less than 1 is effectively compression yes
stretch by 1/4 and compression by 4 is the same
but if you said "compress by a factor of 1/4" then that's gonna be confusing
yes
it's less error prone to simply say "vertical scaling by a factor of whatever"
and that's either a stretch or a scale (and also allows negative factors)
Closed by @vestal lotus
Use .reopen if this was a mistake.
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.
no idea how to do this question
dont think i even did the diagram properly
@quick agate Has your question been resolved?
<@&286206848099549185>
.close
Closed by @quick agate
Use .reopen if this was a mistake.
Do you know that a displacement vector is a velocity vector scaled appropriately for time
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.
b) I am trying to solve
I know that the norm here is induced from an inner product
after that, how can I split the inner product in such a way that I get a <hn,g> and a <h,g> term somehow
.closed
.close
Closed by @livid lantern
Use .reopen if this was a mistake.
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.
Hello does the average value theorem of calculus state that ξ exists in (a,b) or [a,b] so that integral from a to b f(x)dx is (b-a) f(ξ)
I got 2 books one says (a,b) other [a,b]
You sure ?
if f is defined on [a,b] then if you find it in (a,b) you also found it in [a,b]
Viceversa, if ξ is in [a,b] and is exactly one of the extrema, you can show that you can find one in (a,b) too, so they're basically equivalent
if ξ belongs to (a,b) it also belongs to [a,b], no?
What does the theorem say
I think they want to know how to prove that the theorem can be proven for the stronger result
if your function f is defined on [a,b] and you find a ξ in (a,b) satisfying the condition of the problem, then since (a,b) is a subset of [a,b] then ξ is also contained in [a,b] and still satisfies the conditions
Viceversa, if you find a ξ in [a,b] satisfying the conditions you can show that you can also find another ξ' in (a,b) that satisfies the conditions
There is 1 theorem regardless of what is equivalent or similar to it
So the two statements are equivalent, they are the same theorem
(a,b) is a subset of R why not say the theorem says there is ξ in are ?
Cause thats not how the average theorem of calculus is
f is not defined on ℝ so it makes no sense to talk about ℝ
Bro just tell me what the theorem with that name says
Not what your own theorems that are equivalent say
I am not your bro
Whats the point of avoiding my question and just giving me something equivalent
what, lets say c is 5, its part of [5, 10] but not (5,10)
I did not avoid your question
you found two different formulations of the same theorem in two different books, I am telling you they are both correct, there's no “more correct” version
As I said, if c happens to be 5, you can show there exists c' in (5,10) that also satisfies the theorem
They're not the same theorem but one is stronger than the other. I'm not even sure what the confusion is 🤣
Whats the version that got named theorem of average value of calculus
How is one stronger?
Which is the theorem thats called average value of calculus
One states that ξ may always be chosen different from a and b
They probably go by the same name
Bolzanos theorem says (a,b) . [a,b] is equivalent but its not what Bolzano said
Which version what the theorem said as from the guy who made it
yeah ok but in theorem it is explicitly (a,b)
yes, but if ξ happens to be a or b then you can find ξ' different from a and b that satisfies the theorem, so it is not stonger in any way
Apparently one book they were reading disagrees
And that doesn't make it less valid
ξ can be chosen different to a or b and satisfy the equation
It does cause the one theorem makes sure its in (a,b)
So if a is c
Then there is still another point in (a,b)
If theorem was [a,b] then a might be the only point
Yes. Maybe the function has the value f(a) and f(b) at points between a and b for example
The reason there's two version is because one is very easy to prove and other requires more steps
Both versions are true as (a, b) is always inside [a, b]
SHOW THE ORIGINAL THEN
send pictures of both theorems
Really?
@open niche Has your question been resolved?
Closed by @open niche
Use .reopen if this was a mistake.
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.
Hey guys, does anyone know why the boundary here is [1, u/2] and not [1, 2] as from the transformation graph?
The boundary y=2 becomes uv = y = 2, so that solving for v you get v = 2/u.
yes and then we draw the g boundaries
and it seems like the boundaries for u is [1, 2] and for v is also [1, 2], why did we write the u/2 in the upper limit in the integral?
Counter question: Why do you assume it's [1,2] still?
gemme a sec
For a square you would need a 4th boundary too, so that it gets tranformed into a square possibly.
aren't these the boundaries?
You have 3rd one too
@obtuse vault Has your question been resolved?
Closed due to timeout
Use .reopen if this was a mistake.
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.
Sup
I'm trying to find the domain and range
And clearly got confused here
Don't quite remember how this works
that looks really hard
I have never seen someone write ∞⁺, it usually is +∞
the domain and the sign look correct
you were trying to get the inverse function (supposing that there is one)
you have to “find x” in the equation
let's continue from 2x-5xy = 3y+1
How would you go and isolate x?
Kinda got lost there honestly
wanna be friends
I am not sure how to
What should I do if not?
have you tried factoring?
this is just the distributive property
2(3+5) = 2⋅3 + 2⋅5
we're reading it in reverse
2⋅3 + 2⋅5 = 2(3+5)
We are not dividing by x, we just “factored” it on the left
Oh right
I can then
Divide by (2-5y)
The result is (3y+1)/(2-5y) = x this is the inverse?
Honestly I'm still kinda lost
I need to isolate y
it is
f⁻¹(y) = (3y+1)/(2-5y) is the inverse of f(x) = (2x-1)/(3+5x)
Do you know why you looked for the inverse?
Not really honestly just been experimenting
Values in the range of f are the same thing as values in the domain of f⁻¹
So to look for the range of f is the same as to look for the domain of f⁻¹
Oh so with this I can then get the Range
If I do the table
Oh wait I don't need the table
Since it has no restrictions on + or -
Just need to find the value where 2-5y = 0
Which is 2/5
And with this I think I have it, everything but 2/5 right?
yh
Yeah?
yes
Neat Thanks a lot
Is there any other way to find the range that I could have used here?
Divide (2x-1) / (5x+3) = 2/5 - (11/5)/(5x+3). We have a horizontal asymptote y = 2/5 and the hyperbola -2.2/(5x+3) goes above in the I. quadrant, and below in the III. quadrant.
- sorry! Below in the IV. quadrant, and above in the II. quadrant.
I don't know what half of that means, I know what quadrants are but kinda lost on that asymptote thing do wanna understand what you are doing though
It is like -1/x shifted by 2/5 in the y-direction
Still don't understand
What they said presupposes that you know what a hyperbola is (their equation and graph) and how to perform division between polynomials
Don't worry, you'll get there at some point
It it a bit more of an advanced approach.
But what you did before is perfectly valid
Alright, I might check that out later, do either of you have any good videos teaching the topic you'd reccomend?
don't you have a book you use for school?
Yeah, but learn better from videos. I was looking just in case since once someone from here reccomended me one and I really liked it so I try to ask every time I can
But with that we're done
Thank you both
A lot
.close
Closed by @reef hull
Use .reopen if this was a mistake.
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.
i have proven that composite numbers cannot be the answer
do you know gcd(a,b) = gcd(a+kb,b)
yes
euclid's algorithm right?
yeah ok so now consider (n+1)! = (n+1)*n!
gcd( (n+1)*n!, n!+1 )
try to manipulate it somehow
i got n+1 divides n!+1
n+1 divides n!+1??
yes
Review the definition of divides
,calc (9!+1)/(9+1)
Result:
36288.1
false for n=9
i did something like this earlier
factors of (n+1)! which also divide n! + 1 must contain n+1
Hello could someone like clarify in this
like in this question lets say hn is a*(n!+1) and b*(n+1)!
so like could we use some calculus approach ?
how did you get that
if any factor of (n+1) isnt divisible by n+1 then it is a factor of n!
and then it doesnt divide n!+1
hello
hello
something is amiss here but i can't put my finger on what
I am trying to maximise hn
Like i am trying
well i can't make you not waste your own time ig
@lost marlin Has your question been resolved?
Closed due to timeout
Use .reopen if this was a mistake.
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.
can someone explain how to work this question out because i cant find anything similar to it online
@vague light you'll need to know two things, how to find the slope of a line perpindicular to another line, and how to find a line given a point and a slope.
i know that its just what i need to do to get to the answer, i know ive done it before i just cant remember the order to do things
well,
this is a pretty rare question tbh
Let's think this through then
You have two things you need to do
find the slope from the other slope, and then find the line from the point and the slope
which of these two things can you do right now?
i wouldnt say theres really an order in this sort of question
it's more of a checklist
(of 2 entries)
to find the equation of a line in slope-intercept form, you need:
- its slope
- its y-intercept
well, one depends on the other, so I don't object to the "order" idea.
sometimes you get the y-int for free like in this problem
sometimes you don't and so you have to defer it until you've found the slope
oh, I suppose it is just the y-intercept in this case
point is even if you do stick to an order you understand why you do it in this order and so you're less liable to forget
yeah you can just skip the point slope form of the line entirely
i mean point-slope is also good to know your way around but i am not about to try to teach 2 things at once
so i need to find the opposite gradient then just work out the equation of the new line?
wait but how do i work out the slope with only one point? am i being dumb? 😭
do you know what perpendicular means?
@vague light Has your question been resolved?
Closed due to timeout
Use .reopen if this was a mistake.
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.
yo can i ask a question
just ask
so in progressions what does the S stand for
!xy
Please show the original problem, exactly as it was stated to you, with the entire original context. A picture or screenshot is best. If the original problem is not in English, then post it anyway! The additional context might still be helpful. Do your best to provide a translation.
sum probably
hm
Probably, yes, but until you show us the question nothing's for sure.
S yes sum
yes ^^
!original
Please show the original problem, exactly as it was stated to you, with the entire original context. A picture or screenshot is best. If the original problem is not in English, then post it anyway! The additional context might still be helpful. Do your best to provide a translation.
there isnt a specific question other than that, i have my final exam on monday and thats one of the topics i need to relearn
Ok.
so how do i close the chan
ok
ok
btw what grade do you learn stereometry
Stereometry ?
yeah
it's usually called 3D geometry in English
Space geometry
also it usually happens in grades 11 or 12
stereometriq in bulgarian so yeah
damn
bg li si
не, но живея в София от 2+ години
Closed by @gilded crow
Use .reopen if this was a mistake.
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.
no i wrote 90 too
but it didnt wor
it said wrong answer
look
90 is correct. Maybe you're missing the degree sign or something but 90 is right
oh wait fr?
leme check
bro.
i hate doing my homework on this flipping website
i was scrambling my head trying to find the right answer lol
ima ask my teacher tmrw
thx
np
Closed by @red bear
Use .reopen if this was a mistake.
yeee
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.
an "equalizer" of a triangle is a line that divides both the area and the perimeter of the triangle in half
find the smallest a such that there exists a triangle with integer side lengths a>b>c with exactly 2 distinct equalizers
!status
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
Closed by @magic nebula
Use .reopen if this was a mistake.
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.
Find 2 numbers that have sum of 4 and product 2. What are they?
Ik I did something wrong but what
sum of roots is -b/a
not b/a
Where did I do that
a+b=4, ab=2
a+2/a= 4
a^2+2-4a=0
How come
start with the 2 requirements then form the quadratic from it
Can u put that on bot I can’t read that properly
??
Because sum of roots is -b/a, and you're given that the sum is 4.
so -b/a = 4
it's all the same as tex besides the one division
What's a polyatheist 
How do I know what’s a root
How else did you form the equation? You did it by applying sum and product of roots
Idk how to figure out what the root is what a what is it a root
i believe many gods don't exists instead of just the one true nonexistent god
Uh I just followed Stevins equation thing
B is something + something
C is something * something
Oh I see. So not agnostic then?
B is -(something + something), given the leading coefficient is positive.
Not +(something+something)
Just follow this instead, it'll be clearer why you're doing what you're doing.
Idk how to read that
Is there a bot to make that numbers
Wolfram
Or smth
$
,$
;$
$a+b=4
ab=2
a+2/a = 4
a^2+2-4a=0$
;hi
There.
Executor (ask on server b4 DM)
You can just write b as 2/a
??
It’s not in the picture
I got it
I finished it by completing squares
Btw
When does completing squares not work
I have trouble knowing when to use which method. Like idk when I have to use 2nd degree equation thingy (the one with delta) or if I have to use stevia method or if I have to use completing squares or if I have to use Gerard’s stuff
@noble anvil
I don't know anything except the first one.
By delta i assume you mean discriminant.
As for Stevia and Gerard, I've not been taught those, or they might have a different name where I am.
Gerard is the one where roots are a+b= a/c or smth
And a*b=c/a
Idk
If that’s right but u should know what I mean
This
I meant Stevins
I don't know that either
So vieta
Yes, this is what i was saying, sum of roots is -b/a and product is c/a
Lemme show u one
Steven is factorizing I think
This is Steven though
Wait that was wrong
There
@noble anvil
So like how do I know which method to use
Cause I get lost tryna figure out what to do
Well, to make the equation you might need Gerard, and to find its roots you can use either gerard or stevins, and to check if the roots exist, are real or not,etc. you can use delta (discriminant)
Depends on what the question asks basically
What about completing squares
When do I use that
There's no exact answer imo
I see
@latent mortar Has your question been resolved?
Wait
One more
I have a question saying 2 numbers add to 0,9 and those same numbers product is 0,2
I made the thingy
The equation
It’s a^2-0,9a = -0,2
What’s next
Idk how to work the decimal numbers
Oh I got it

I’m getting better at math everyday 
Can’t wait to become pro math player
And be able to go into other ppls questions without saying “what the actual hell is that” in my head
That's the spirit 
What
first?
Then looking for the number that multiplies 2*somehting= 1/3
Is that the right route?
Or is the delta (triangle) formula the only way
No
Thought so
Multiply by 12 on both sides of the equation
just use the quadratic formula
Yeah
I am
But mutlypling by 12 will make it easier
Also
Can u answer
Does the lhs become 12
Cause if I’m multiplying both sides by 12 isn’t 0*12=0
no if are mutpliyng by 12
on both sides
that is 12*1/2=1
and the other side by 12
What
so 0*12=0
Yeah so the lhs stays 0
yea
I mean rhs
by 12*1/12=1
Not left whoops
Ok
still
I just wanted to know if the rhs stayed 0
ppq#7826
Erm
Based af.
Imma do it now my teacher taught me
sorry i cant use the ai right
Imma end up confusing myself since this stuff is still new to me
For what
the textit ai thingy
If you confuse yourself then stare at the notebook until you confuse yourself even more and then it finally starts to make sense
yuh
yes though you need to do the *12 on both sides
write it on both sides
not as 1 side
I did
even though i know what you mean
Oh
no you ahve to write it on boths dies like *12
you showed it but you have to wrtie it twice
ont once
I see
even though it shows you did it too the whole equation
which is what you should be doing
regradless
yuh

Your bread's nicotine addicted
Better get it off that shi


What did I do wrong here
Apparently the answer is 4/3
I really don’t know
Shouldn’t this method work here?
just plug it into the formula
Ik but It’s easier to do it this way
or complete the square to get vertex form and then slove it to get the roots
Nah it is
Uh
Yeah I don’t think I could do this method when y is not being multiplied by 1
how do you not know what a gcf is
i dont know how they teach it
Ight
I see
Alg
Imma do quadratic equation
there no answer
the only asnwer is y=4/3
but thats not an answer
yea and if you cahnge the y with an x
the answer is x=4/3
@latent mortar
Yeah
21c
<@&286206848099549185>
I got the answer wrong but idk why
Wait I might know
I got it
My bad for the ping my glorious kings
(No glaze)
its -9
what
Lel
I toughtit was was a hard solution to my issue so I sent it whole I waited for someone to come I tried finding it out
Also I said ur missing a root cause one of the roots to the problem is -9
lol
kk
Ok I’m done for today
Almost 5 hours to do 2 pages of math
I have 6 pages for tmr and Sunday
So 3 for tmr and 3 for Sunday
And I have to learn the questions I was solving with u a while ago
11 of them
I thought you solved all of those
I did but I didn’t learn them all
I handed in the paper today
And I have to present them on Monday or Tuesday
I have to learn them all
Cause my teacher is gonna ask me a random one
Well technically it’s my group but they did absolutely nothing
You don't need to "learn" problems
I legit did everything
If you've solved them like twice you can reproduce it from memory
Memorizing isn’t good though
The point is to learn and apply them on future questions right
But yeah memorizing them is easier
Probably will try to for a few harder questions
Anything u wanna say before i close?
I don’t wanna cut you off
No it's fine, just remember the stuff I've said till now don't rotelearn beyond what's needed
Cya 
Roteleqrn?
What rhat
memorise
An I see
Tysm bro
Basically almost every time I need help u helped me
No matter what day and time I’m on
Tysm
Means a lot
.close
Closed by @latent mortar
Use .reopen if this was a mistake.
does anyone know how to solve transendental equations?
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.
I'm having a really hard time solving this
What is this
@cobalt karma Has your question been resolved?
@cobalt karma Has your question been resolved?
Channel closed due to the original message being deleted.
If you did not intend to do this, please open a new help channel,
as this action is irreversible, and this channel may abruptly lock.
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.
help
i thought i knew the topic until this thing appeared
@past wedge Has your question been resolved?
Just use the L'Hopital's rule. This gives [
\lim_{x \to 0} \frac{4 \sin(4x)}{18x}
].
Next apply this useful fact:
[
\lim_{x \to 0} \frac{\sin(kx)}{x} = k
]. This gives
[
\frac{2 \sin(4x)}{9x} = \frac{2 \cdot 4}{9} \cdot \frac{\sin(4x)}{4x} = \frac{8}{9} \cdot \frac{\sin(4x)}{4x}
]
[
\lim_{x \to 0} \frac{\sin(4x)}{4x} = 1
]
So the answer is 8/9
8/9
dang i feel bad, i dont know that method yet. i apreciatte it tho
They’d do lhöpital if they wanted to lol
a guy with no beard
There might be an easier solution I’m not seeing tho
my proffesor is very picky if i dont follow his method he might give me half points
ill just bring the question to class on monday
Idk man. I don't see how his method is useful in this case
The denominator is x², not x
Oh that’s not his method that’s just what I would have done
But I guess there is no way to do it with what I knew
What is his method then
He says I force the one below
Inside the cosine
That’s what he would say
But he never target that problem before in class
Oh wow
If you force it, then 1/9x * 1-cos4x/x becomes an indeterminate as x approaches 0
you could try showing lim x->0 (1-cosx)/x^2=1/2 and go on from there but idk if your teacher would accept it
If you show that u=4x substitution finishes the question yeah
Wait you also need to show that same thing for my long ass solution 🤦♂️
Just write a proof for the L'Hopital's at this point
lol
I’ll just move on from this problem for now and ask my teacher on Monday. Thanks guys
@past wedge Has your question been resolved?
You can yous this
=1/2 it's a famous limit
So you have 1/9 × 1/2 × 16 = 16/18 = 8/9
Thank for that, I’ll ask if that’s a valid way.
Closed by @past wedge
Use .reopen if this was a mistake.
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.
can someone guide me
I would first express y in terms of x and z. For the bounds, consider the plane projection on the xz plane.
so i have 2-x-z=0
Yeah, now solve for z
solve for z , i dont really get it
normally i will write x+z<=2
x from 0 to 2-z
and z from 0 to 2
For example
thank you i get the idea now
Also notice x,y,z >= 0
.close
Closed by @unkempt urchin
Use .reopen if this was a mistake.
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.
Differential equation 2nd order nonhomogeneous
I got the second method solution correct, however it's different with the first method (manual/conventional method)
Anyone know where's the mistake?
The question is
y'' -6y' +9y' = 8e^x
And the solution from my 2nd method was\
$Y = (2e^x) + [e^3x (C_1x + C_2)]$
Awaww🦑
I'm afraid I don't understand your first solution
It looks almost like you're using the first order non-homogeneous solution
So how do you justify using a first order homogeneous solution for a second order non-homogeneous equation exactly?
it shows u how to solve the 2nd order non homogeneous by the first order non-homogeneous solution
and the result is still correct
Ah I see
It's not clear to me how I is determined here
And you have determined a completely different I
So...
$(D+1) u = 5\
\frac{du}{dx} + u = 5
I = \int{1} dx = x$
Awaww🦑
Compile Error! Click the
reaction for more information.
(You may edit your message to recompile.)
oh hold on
Forgive me, please, but I am not familiar with this particular trick, so this series of equations don't explain the justification
I think I know what u mean, I = e^integral p(x) dx right?
Right, I gotcha now
so its same
I see some of you guys using this, but they teach different things in my country. However it still the same
Can you explain the rationale of why you are multiplying everything here by exp(-3x)?
That's the Integers factor, isn't it?
Ah, ok I think I get what you did
is d/dx ([u] [e^-3x]) = [(e^-3x) (du/dx)] + [(- 3u)(e^-3x)] ?
Between these two lines, you're doing a lot here
And the line above it looks like you dropped a factor on y
-3y becomes -y
There's a definite mistake with the -3y becoming -y, but also there might be an error converting to the Integral a second time
-3 + 1 = -2
wait let me try to get a better photo there
I'm sorry, is that in response to me? If so, please explain?
No, his exponents are incorrect
Ah
He did -3 + 1 = 4 somehow
In the circled area?
Yes
Yeah I thought something was wrong, but so much was going on, that I wasn't completely confident on what
Indeed.
however the result is still different with this
$Y = (2e^x) + [e^{3x} (C_1x + C_2)]$
Awaww🦑
This is not what you have in the first line in the red circle
Did you distribute the exponential under the derivative on the third line on the left
Yeah
back to the problem, my issue here is why is the answer a little bit too far from this
Where in your work are you dividing e^x by e^(-3x)
On the left of the second line you're multiplying
oohhhhh
am sorry haha
oohhhh
tysm ❤️
i got the same answer with the 2nd method
.close
Closed by @arctic violet
Use .reopen if this was a mistake.
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.
Need help with this question
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
there's no need to !status yourself btw you can just explain yourself without
okok i just did for clarity
show your progress tho
So like i was trying to find a relation between an-1 and an
i even tried finding values for ak for like from 0 to 4
but they have no relation
like a0=1 , a1=1/2 , a2=1/12, a3=0 and a4=-1/720
some commas would have helped
ok
hm. seems tricky.
maybe trying to look at the generating function of these a_n would help
(using the relation between them to derive some kind of form for it)
not yet sure how exactly but thats the only idea coming to mind rn
True but like i am stuck at this point
Look could we manipulate the fact that P(n) has utmost a degree 0f 2024
Like for maybe at max 2024 numbers
P(n)- this summation * n! is 0
hello?
hello ?
Ann?
what ?
ok but you still acted rather impatient
