#help-4

1 messages · Page 12 of 1

tribal plover
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idk

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I can switch genders

stark wedge
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anyway you have to claim your own channel

tribal plover
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????

tribal plover
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and they left

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i was here first

stark wedge
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yeah but unfortunately their name got put on the channel

tribal plover
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then they used like somethin

stark wedge
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it's a technical thing

tribal plover
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oh just saying it had some corn

stark wedge
tribal plover
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idk

stark wedge
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and update your pronouns there

fickle rose
tribal plover
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ok

vale dockBOT
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wet tundra
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for patrt b why did they use the point 3,1

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to trransform

wet tundra
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oh..

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3,1

novel canyon
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bum chicken

wet tundra
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ok thanks

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H IWATERBEAM

wet tundra
novel canyon
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bro

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ts isnt even the hardest thing uve done u have done more difficult (vectors??????........!!!!!!!!)

night ginkgo
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Water

novel canyon
night ginkgo
novel canyon
vale dockBOT
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@wet tundra Has your question been resolved?

wet tundra
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logs are lowk harder than vectors

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and proofs

novel canyon
vale dockBOT
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hearty kindle
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Guys, I need help identifying the set of functions.

drifting hornet
noble anvil
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!xy

vale dockBOT
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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.

hearty kindle
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This is funcs

noble anvil
flint sparrow
hearty kindle
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I think it belongs to R except 1

flint sparrow
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Yes that's most likely the domain

noble anvil
wet night
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x-1 can not = to 0

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otherwise it will make the function undefined

hearty kindle
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I also want its shape

noble anvil
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Lmao w graph (x^2+x-1)/(x-1)

noble anvil
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There you go

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That's not a standard shape though.

hearty kindle
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I think we need a tangent line to the function.

noble anvil
hearty kindle
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Well, in the exercise I'm doing they asked me to show that y=x+2 is an inclined asymptote of a function.

cloud coral
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an inclined asymptote is typically not understood as a tangent line

vale dockBOT
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@hearty kindle Has your question been resolved?

hearty kindle
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If I want to enter the line y=x+2 in the graph as an inclined asymptote

noble anvil
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Lmao w graph y= (x^2+x-1)/(x-1), y= x+2

hearty kindle
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Thinks

cloud coral
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the two functions look close to each other, what if we subtract them?

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find their difference

hearty kindle
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It is close to the function because it may be asymptotic.

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Oh, you mean the function?

noble anvil
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If it comes out to be 0, then you've proven that line is an asymptote.

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Can you tell me why that is so?

hearty kindle
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Maybe because we did the subtraction between the function and the line y=x+2

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I have no idea

noble anvil
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Ignore that

hearty kindle
noble anvil
# noble anvil Oops, maybe I'm hallucinating

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 $(x + 2) + \frac{1}{x-1}$

rocky lotusBOT
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Executor (ask on server b4 DM)

noble anvil
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Now we can just take the limit of the term 1/(x-1) as x approaches infinity, so it becomes 0

terse silo
rocky lotusBOT
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VincentBH

noble anvil
terse silo
noble anvil
rocky lotusBOT
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VincentBH

terse silo
noble anvil
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True bking

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@hearty kindle you can do it by whichever way you can visualise better.

hearty kindle
noble anvil
terse silo
noble anvil
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Yeah, if you weren't given it blobthumbsup

hearty kindle
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I have a problem with the change table and also with splitting the function

noble anvil
hearty kindle
noble anvil
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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.

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Just add and subtract x+2

hearty kindle
noble anvil
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Now to find its nature we just have to differentiate.

hearty kindle
noble anvil
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Though if it is what I just explained it's a pretty bad method lol

hearty kindle
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This is an illustrative example.

noble anvil
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Could you differentiate the function given to us then?

hearty kindle
noble anvil
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Where did I say separation

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I said take the derivative

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Oh are you using a translate app?

hearty kindle
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Yes, sorry I misunderstood.

hearty kindle
vale dockBOT
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@hearty kindle Has your question been resolved?

vale dockBOT
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dreamy trellis
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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.

safe fulcrum
rocky lotusBOT
safe fulcrum
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and that's made up of two straight lines, y = x and y = -x

dreamy trellis
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thank you very much, I was questioning whether I passed my exam or not

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.close

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next vortex
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so I have this proposition that I wanted to prove

next vortex
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here's my work

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I'm fairly sure this works, but I'm putting this here in case somebody thinks there's a mistake

wraith heart
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<@&268886789983436800>

wild linden
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@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.

wooden frigate
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if you click on the image it shows up for me

leaden cargo
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They all show to me idk

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btw looks good to me

next vortex
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huh. the 2nd image is bugging for me

leaden cargo
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Though (b) and (c) are not really about Lie groups, just basic group theory

next vortex
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I can't upload it properly

next vortex
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I've not actually done any group theory prior to Lie groups though

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so it'd be nice to check if I got those right too

leaden cargo
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I can't promise that I've looked through every algebraic step 😅

next vortex
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that's okay, I feel confident in the algebra giggle

wild linden
next vortex
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and if no other words are said, I'll close MenheraSalute1

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.solved

vale dockBOT
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vale dockBOT
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woven ivy
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Sup

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I basically got a question

vale dockBOT
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vale dockBOT
lavish elbow
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<@&268886789983436800>

vale dockBOT
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vestal lotus
vale dockBOT
vestal lotus
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just wanna make ure im not trippin

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but the textbook says vertical stretch scale factor 1/4

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it should be compression right?

quasi valve
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well stretching by a factor of less than 1 is effectively compression yes

rough talon
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stretch by 1/4 and compression by 4 is the same

quasi valve
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but if you said "compress by a factor of 1/4" then that's gonna be confusing

vestal lotus
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like wouldnt it be vertical compression, scale factor of 1/4?

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ohh

quasi valve
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yes

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it's less error prone to simply say "vertical scaling by a factor of whatever"

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and that's either a stretch or a scale (and also allows negative factors)

vestal lotus
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ohh okok

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got it

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thanks guys

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🙏

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.close

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quick agate
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no idea how to do this question

vale dockBOT
quick agate
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dont think i even did the diagram properly

vale dockBOT
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@quick agate Has your question been resolved?

quick agate
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<@&286206848099549185>

quick agate
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.close

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karmic yacht
#

Do you know that a displacement vector is a velocity vector scaled appropriately for time

vale dockBOT
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livid lantern
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b) I am trying to solve

vale dockBOT
livid lantern
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I know that the norm here is induced from an inner product

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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

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.close

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open niche
#

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)

open niche
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I got 2 books one says (a,b) other [a,b]

neon summit
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(a,b)

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f(x) is continuous on [a,b]

open niche
leaden cargo
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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

open niche
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Im confused

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So what does the theorem say

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There is one in [a,b] or (a,b)

leaden cargo
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if ξ belongs to (a,b) it also belongs to [a,b], no?

open niche
leaden cargo
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I'm telling you both versions are equivalent

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they are both correct

neon summit
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how are they the same

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[a,b] implies a and b are included too

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(a,b) doesnt

open niche
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Not 2

glad pivot
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I think they want to know how to prove that the theorem can be proven for the stronger result

open niche
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No i am not asking for proof

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I asking what the theorem says

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Not what we can say

leaden cargo
# neon summit [a,b] implies a and b are included too

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

open niche
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There is 1 theorem regardless of what is equivalent or similar to it

leaden cargo
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So the two statements are equivalent, they are the same theorem

open niche
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Ok bro but what does the theorem say

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Whats the official theorem

open niche
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Cause thats not how the average theorem of calculus is

leaden cargo
open niche
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Bro just tell me what the theorem with that name says

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Not what your own theorems that are equivalent say

leaden cargo
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I am not your bro

open niche
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Whats the point of avoiding my question and just giving me something equivalent

neon summit
leaden cargo
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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

leaden cargo
glad pivot
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They're not the same theorem but one is stronger than the other. I'm not even sure what the confusion is 🤣

open niche
open niche
glad pivot
glad pivot
open niche
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Which version what the theorem said as from the guy who made it

neon summit
leaden cargo
leaden cargo
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And that doesn't make it less valid

glad pivot
open niche
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So if a is c

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Then there is still another point in (a,b)

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If theorem was [a,b] then a might be the only point

glad pivot
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Yes. Maybe the function has the value f(a) and f(b) at points between a and b for example

open niche
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So what does the theorem say

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Is ξ in (a,b) or [a,b]

glad pivot
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The reason there's two version is because one is very easy to prove and other requires more steps

open niche
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Yea but theorem is about (a,b)

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The original one

glad pivot
open niche
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Im not asking if they are true

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Im asking which is the original theorem

glad pivot
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SHOW THE ORIGINAL THEN

open niche
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idk it thats why im asking

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Thats the whole question

neon summit
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send pictures of both theorems

glad pivot
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There is no original

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It is two different theorems

open niche
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Nvm someone replied

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The open interval one is stronger and is prefered on most books

vale dockBOT
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@open niche Has your question been resolved?

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obtuse vault
#

Hey guys, does anyone know why the boundary here is [1, u/2] and not [1, 2] as from the transformation graph?

ivory valley
obtuse vault
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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?

ivory valley
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Counter question: Why do you assume it's [1,2] still?

obtuse vault
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gemme a sec

ivory valley
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For a square you would need a 4th boundary too, so that it gets tranformed into a square possibly.

ivory valley
#

You have 3rd one too

vale dockBOT
#

@obtuse vault Has your question been resolved?

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reef hull
#

Sup

vale dockBOT
reef hull
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I'm trying to find the domain and range

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And clearly got confused here

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Don't quite remember how this works

cloud bluff
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that looks really hard

reef hull
leaden cargo
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I have never seen someone write ∞⁺, it usually is +∞
the domain and the sign look correct

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you were trying to get the inverse function (supposing that there is one)

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you have to “find x” in the equation

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let's continue from 2x-5xy = 3y+1

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How would you go and isolate x?

reef hull
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Kinda got lost there honestly

cloud bluff
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wanna be friends

reef hull
leaden cargo
reef hull
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How to do I factor this?

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x-¹

leaden cargo
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2x-5xy = x(2-5y)

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both terms have x so you can “group” them together

reef hull
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But doesn't that lead me to lose all x?

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That is still fine?

leaden cargo
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wdym lose x?

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x is right there, we just isolated it more

reef hull
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Since its dividing?

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Oh lol

leaden cargo
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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)

leaden cargo
reef hull
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Oh right

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I can then

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Divide by (2-5y)

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The result is (3y+1)/(2-5y) = x this is the inverse?

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Honestly I'm still kinda lost

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I need to isolate y

leaden cargo
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it is
f⁻¹(y) = (3y+1)/(2-5y) is the inverse of f(x) = (2x-1)/(3+5x)

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Do you know why you looked for the inverse?

reef hull
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Not really honestly just been experimenting

leaden cargo
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Values in the range of f are the same thing as values in the domain of f⁻¹

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So to look for the range of f is the same as to look for the domain of f⁻¹

reef hull
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Oh so with this I can then get the Range

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If I do the table

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Oh wait I don't need the table

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Since it has no restrictions on + or -

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Just need to find the value where 2-5y = 0

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Which is 2/5

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And with this I think I have it, everything but 2/5 right?

leaden cargo
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yh

reef hull
leaden cargo
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yes

reef hull
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Neat Thanks a lot

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Is there any other way to find the range that I could have used here?

manic igloo
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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.

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  • sorry! Below in the IV. quadrant, and above in the II. quadrant.
reef hull
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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

manic igloo
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It is like -1/x shifted by 2/5 in the y-direction

reef hull
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Still don't understand

leaden cargo
#

Don't worry, you'll get there at some point

manic igloo
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It it a bit more of an advanced approach.

leaden cargo
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But what you did before is perfectly valid

reef hull
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Alright, I might check that out later, do either of you have any good videos teaching the topic you'd reccomend?

leaden cargo
#

don't you have a book you use for school?

reef hull
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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

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But with that we're done

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Thank you both

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A lot

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.close

vale dockBOT
#
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lost marlin
vale dockBOT
lost marlin
#

i have proven that composite numbers cannot be the answer

mental skiff
#

Wow a olympiad type question

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Lets approach it

lost marlin
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with the limited no. of primes i have tried it does work

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but i am unable to prove

stark wedge
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do you know gcd(a,b) = gcd(a+kb,b)

lost marlin
#

yes

mental skiff
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euclid's algorithm right?

stark wedge
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gcd( (n+1)*n!, n!+1 )

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try to manipulate it somehow

lost marlin
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i got n+1 divides n!+1

stark wedge
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n+1 divides n!+1??

lost marlin
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yes

stark wedge
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i don't think you really got that

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i think you are either misspeaking or plain wrong

wraith heart
#

Review the definition of divides

stark wedge
#

,calc (9!+1)/(9+1)

rocky lotusBOT
#

Result:

36288.1
stark wedge
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false for n=9

lost marlin
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i did something like this earlier
factors of (n+1)! which also divide n! + 1 must contain n+1

mental skiff
#

Hello could someone like clarify in this

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like in this question lets say hn is a*(n!+1) and b*(n+1)!

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so like could we use some calculus approach ?

mental skiff
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Like maximising hn

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okok

lost marlin
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and then it doesnt divide n!+1

mental skiff
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hello

lost marlin
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hello

stark wedge
mental skiff
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I am trying to maximise hn

stark wedge
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you will get nowhere by calculus

#

this is a discrete function of a discrete variable

mental skiff
#

Like i am trying

stark wedge
#

well i can't make you not waste your own time ig

vale dockBOT
#

@lost marlin Has your question been resolved?

vale dockBOT
#
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vague light
#

can someone explain how to work this question out because i cant find anything similar to it online

wild linden
#

@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.

vague light
#

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

wild linden
#

well,

tender sphinx
wild linden
#

Let's think this through then

tender sphinx
#

im not surprised you cant find anything similar

#

xd

wild linden
#

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?

stark wedge
#

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
wild linden
#

well, one depends on the other, so I don't object to the "order" idea.

stark wedge
#

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

wild linden
#

oh, I suppose it is just the y-intercept in this case

stark wedge
#

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

wild linden
#

yeah you can just skip the point slope form of the line entirely

stark wedge
#

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

vague light
#

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? 😭

tender sphinx
#

do you know what perpendicular means?

vale dockBOT
#

@vague light Has your question been resolved?

vale dockBOT
#
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vale dockBOT
#
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gilded crow
#

yo can i ask a question

vale dockBOT
tired condor
#

just ask

gilded crow
#

so in progressions what does the S stand for

vale dockBOT
# gilded crow so in progressions what does the S stand for

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.

opal pendant
gilded crow
noble anvil
#

Probably, yes, but until you show us the question nothing's for sure.

mental skiff
#

S yes sum

mental skiff
#

!original

vale dockBOT
#

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.

gilded crow
noble anvil
#

Ok.

gilded crow
mental skiff
#

Ok

#

.close

#

type this in the chat

gilded crow
#

ok

mental skiff
#

ok

gilded crow
#

btw what grade do you learn stereometry

mental skiff
#

Stereometry ?

gilded crow
#

yeah

stark wedge
#

it's usually called 3D geometry in English

viscid spade
#

Space geometry

stark wedge
#

also it usually happens in grades 11 or 12

gilded crow
stark wedge
#

i was ABOUT to ask if you're bg

#

lmao

gilded crow
gilded crow
stark wedge
#

не, но живея в София от 2+ години

gilded crow
#

!close

#

.close

vale dockBOT
#
Channel closed

Closed by @gilded crow

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red bear
#

.ocupy

vale dockBOT
red bear
#

i need ze help

#

me no understando what me wrongo

#

like fr bro what am i getting wrong

verbal badger
#

you got def

#

question wants aef

red bear
#

how did i get def

verbal badger
#

like your work is all right, you literally wrote the wrong answer

#

you said its 60

red bear
#

but it didnt wor

#

it said wrong answer

#

look

verbal badger
#

90 is correct. Maybe you're missing the degree sign or something but 90 is right

red bear
#

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

verbal badger
#

np

red bear
#

how do i close

#

.close

vale dockBOT
#
Channel closed

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red bear
#

yeee

vale dockBOT
#
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magic nebula
#

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

vale dockBOT
magic nebula
#

sorry

#

.close

vale dockBOT
#
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vale dockBOT
#
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latent mortar
#

Find 2 numbers that have sum of 4 and product 2. What are they?

latent mortar
#

Ik I did something wrong but what

noble anvil
#

not b/a

latent mortar
#

Where did I do that

noble anvil
#

it'll be -4x

rotund parcel
#

a+b=4, ab=2
a+2/a= 4
a^2+2-4a=0

latent mortar
#

How come

rotund parcel
#

start with the 2 requirements then form the quadratic from it

latent mortar
rotund parcel
#

??

noble anvil
rotund parcel
#

it's all the same as tex besides the one division

noble anvil
#

What's a polyatheist MenheraThink1

latent mortar
noble anvil
latent mortar
#

Idk how to figure out what the root is what a what is it a root

rotund parcel
latent mortar
#

B is something + something

#

C is something * something

noble anvil
noble anvil
#

Not +(something+something)

latent mortar
#

What

#

Stevins thing only works if b is negative?

noble anvil
latent mortar
#

Idk how to read that

#

Is there a bot to make that numbers

#

Wolfram

#

Or smth

#

$

#

,$

#

;$

noble anvil
#

$a+b=4
ab=2
a+2/a = 4
a^2+2-4a=0$

latent mortar
#

;hi

noble anvil
#

There.

rocky lotusBOT
#

Executor (ask on server b4 DM)

latent mortar
#

I don’t get this part

noble anvil
#

Embed failure

#

Ok it's back

noble anvil
latent mortar
#

Isn’t it a/2

#

Wait no

#

Isn’t it better to write a = 2/b

noble anvil
#

It doesn't matter

#

Either is fine.

latent mortar
#

I see what I did wrong before

#

I didn’t put parenthesis

#

When I did 4-b*b=2

noble anvil
#

??

latent mortar
#

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

noble anvil
#

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.

latent mortar
#

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

noble anvil
latent mortar
#

As for Stevins

#

For example

noble anvil
# latent mortar

Yes, this is what i was saying, sum of roots is -b/a and product is c/a

latent mortar
#

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

noble anvil
latent mortar
#

Depends on what the question asks basically

#

What about completing squares

#

When do I use that

lyric sundial
#

There's no exact answer imo

latent mortar
#

I see

vale dockBOT
#

@latent mortar Has your question been resolved?

latent mortar
#

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 sotrue

#

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

latent mortar
#

@noble anvil sorry for the A but

#

@

noble anvil
#

What

latent mortar
#

How do I do the one in fraction

#

I tried passing it to the other side

noble anvil
#

first?

latent mortar
#

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

noble anvil
latent mortar
#

Thought so

noble anvil
#

Multiply by 12 on both sides of the equation

latent mortar
#

Oh shii

#

Good idea

#

Holy

#

Genius

#

Wait but

#

0*12=0

#

Right

zinc fulcrum
latent mortar
#

Yeah

#

I am

#

But mutlypling by 12 will make it easier

#

Also

#

Can u answer

#

Does the lhs become 12

zinc fulcrum
#

just use a calcuator and plug the formula in

#

thats what i do by now

latent mortar
#

Cause if I’m multiplying both sides by 12 isn’t 0*12=0

zinc fulcrum
#

yea

#

*12

latent mortar
#

So the lhs will stay 0

zinc fulcrum
#

no if are mutpliyng by 12

#

on both sides

#

that is 12*1/2=1

#

and the other side by 12

latent mortar
#

What

zinc fulcrum
#

so 0*12=0

latent mortar
#

Yeah so the lhs stays 0

zinc fulcrum
#

yea

latent mortar
#

I mean rhs

zinc fulcrum
#

by 12*1/12=1

latent mortar
#

Not left whoops

zinc fulcrum
#

the rhs is 0

latent mortar
#

Ok

zinc fulcrum
#

still

latent mortar
#

Ty

#

Yeah that’s what I mean in confused myself by saying lhs

noble anvil
#

Whattup

#

doubt resolved?

latent mortar
#

I just wanted to know if the rhs stayed 0

rocky lotusBOT
#

ppq#7826

latent mortar
noble anvil
latent mortar
#

Imma do it now my teacher taught me

zinc fulcrum
#

sorry i cant use the ai right

latent mortar
#

Imma end up confusing myself since this stuff is still new to me

noble anvil
zinc fulcrum
#

the textit ai thingy

latent mortar
#

So that’s correct right?

noble anvil
noble anvil
zinc fulcrum
#

write it on both sides

#

not as 1 side

latent mortar
zinc fulcrum
#

even though i know what you mean

latent mortar
zinc fulcrum
#

you showed it but you have to wrtie it twice

#

ont once

latent mortar
#

I see

zinc fulcrum
#

even though it shows you did it too the whole equation

#

which is what you should be doing

#

regradless

noble anvil
#

yuh

latent mortar
#

Ight

#

Cut

#

Cuh*

zinc fulcrum
#

.close

#

if you want to close

#

the channel

latent mortar
noble anvil
#

Better get it off that shi

latent mortar
#

What did I do wrong here

#

Apparently the answer is 4/3

#

I really don’t know

#

Shouldn’t this method work here?

zinc fulcrum
#

?

#

what are you doing

latent mortar
#

Finding the roots

zinc fulcrum
#

just plug it into the formula

latent mortar
#

Ik but It’s easier to do it this way

zinc fulcrum
#

or complete the square to get vertex form and then slove it to get the roots

latent mortar
#

Ohhhh

#

I think I know

zinc fulcrum
#

you messed that thats not a method

#

i think

latent mortar
#

Nah it is

zinc fulcrum
#

there is no x valuse

#

i grpahed it no asnwer

latent mortar
#

Uh

zinc fulcrum
#

9y^{2}-24y+16=0

#

didnt get an answer

#

no x intercept

#

so no roots

latent mortar
#

Yeah I don’t think I could do this method when y is not being multiplied by 1

zinc fulcrum
#

maybe

#

there isnt a gcf even

latent mortar
#

What that

#

Common factor

#

?

zinc fulcrum
#

how do you not know what a gcf is

latent mortar
#

I’m from Brazil

#

Idk English terminology

zinc fulcrum
#

i dont know how they teach it

latent mortar
#

Ight

zinc fulcrum
#

i know the sainsh way

#

spainsh

latent mortar
#

I see

zinc fulcrum
#

not the procgussee way

#

sorrty

latent mortar
#

Alg

zinc fulcrum
#

but there isnt an answewer

latent mortar
#

Imma do quadratic equation

zinc fulcrum
#

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

latent mortar
#

Yeah

#

<@&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)

noble anvil
latent mortar
#

Ur missing a root

noble anvil
noble anvil
latent mortar
#

Oh

#

Yeah I figured that iut

noble anvil
#

Lel

latent mortar
#

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

noble anvil
#

kk

latent mortar
#

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

noble anvil
#

I thought you solved all of those

latent mortar
#

Remember these guys

latent mortar
#

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

noble anvil
#

You don't need to "learn" problems

latent mortar
#

I legit did everything

noble anvil
#

If you've solved them like twice you can reproduce it from memory

latent mortar
#

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

noble anvil
#

Cya MenheraWave1

noble anvil
latent mortar
#

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

vale dockBOT
#
Channel closed

Closed by @latent mortar

Use .reopen if this was a mistake.

sly cargo
#

does anyone know how to solve transendental equations?

vale dockBOT
#
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vale dockBOT
cobalt karma
#

I'm having a really hard time solving this

stark rivet
vale dockBOT
#

@cobalt karma Has your question been resolved?

vale dockBOT
#

@cobalt karma Has your question been resolved?

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past wedge
vale dockBOT
past wedge
#

i want to solve this with this

#

no other method please

stable parcel
#

Do u substitution, where u = 4x.

#

Hmm, maybe not.

past wedge
#

i thought i knew the topic until this thing appeared

median sun
#

cos2x= cos^2(x)-sin^2(x) right

#

cos4x= cos^2(2x)-sin^2(2x)

vale dockBOT
#

@past wedge Has your question been resolved?

stark rivet
#

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

past wedge
median sun
#

They’d do lhöpital if they wanted to lol

past wedge
#

i just started calculus

#

wait but i should learn it

#

the hospital method

rocky lotusBOT
#

a guy with no beard

median sun
#

There might be an easier solution I’m not seeing tho

past wedge
#

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

stark rivet
#

The denominator is x², not x

past wedge
#

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

stark rivet
#

What is his method then

past wedge
#

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

stark rivet
tidal terrace
#

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

median sun
#

Wait you also need to show that same thing for my long ass solution 🤦‍♂️

stark rivet
#

Just write a proof for the L'Hopital's at this point

past wedge
#

I’ll just move on from this problem for now and ask my teacher on Monday. Thanks guys

vale dockBOT
#

@past wedge Has your question been resolved?

tardy jasper
#

You can yous this

#

=1/2 it's a famous limit

#

So you have 1/9 × 1/2 × 16 = 16/18 = 8/9

past wedge
#

Thank for that, I’ll ask if that’s a valid way.

vale dockBOT
#
Channel closed

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unkempt urchin
#

can someone guide me

vale dockBOT
ivory valley
unkempt urchin
#

so i have 2-x-z=0

ivory valley
#

Yeah, now solve for z

unkempt urchin
#

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

ivory valley
#

Because you have dzdx not dxdz

#

So your inner bounds will depend on x first

rocky lotusBOT
ivory valley
#

For example

unkempt urchin
#

thank you i get the idea now

ivory valley
#

Also notice x,y,z >= 0

unkempt urchin
#

.close

vale dockBOT
#
Channel closed

Closed by @unkempt urchin

Use .reopen if this was a mistake.

vale dockBOT
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arctic violet
#

Differential equation 2nd order nonhomogeneous

arctic violet
#

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\
$Y = (2e^x) + [e^3x (C_1x + C_2)]$

rocky lotusBOT
#

Awaww🦑

wild linden
#

I'm afraid I don't understand your first solution

#

It looks almost like you're using the first order non-homogeneous solution

arctic violet
#

I tried to break it into homogeneous first order

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i tried these method

wild linden
#

So how do you justify using a first order homogeneous solution for a second order non-homogeneous equation exactly?

arctic violet
#

and the result is still correct

wild linden
#

Ah I see

#

It's not clear to me how I is determined here

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And you have determined a completely different I

arctic violet
rocky lotusBOT
#

Awaww🦑
Compile Error! Click the errors reaction for more information.
(You may edit your message to recompile.)

arctic violet
#

oh hold on

wild linden
#

Forgive me, please, but I am not familiar with this particular trick, so this series of equations don't explain the justification

arctic violet
#

I think I know what u mean, I = e^integral p(x) dx right?

wild linden
#

Oh, that

#

Sure ok

arctic violet
#

But, we use I = Integral p(x)

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and then we put e^(I)

wild linden
#

Right, I gotcha now

arctic violet
#

so its same

arctic violet
wild linden
wild linden
arctic violet
#

That's the Integers factor, isn't it?

wild linden
#

Wouldn't you just jump to the formula here?

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U' - 3U = 8e^x

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p = -3, q = 8e^x

arctic violet
#

hmm, yeah i should prove that first

wild linden
#

Ah, ok I think I get what you did

arctic violet
#

is d/dx ([u] [e^-3x]) = [(e^-3x) (du/dx)] + [(- 3u)(e^-3x)] ?

wild linden
wild linden
#

And the line above it looks like you dropped a factor on y

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-3y becomes -y

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There's a definite mistake with the -3y becoming -y, but also there might be an error converting to the Integral a second time

wraith heart
#

-3 + 1 = -2

arctic violet
#

wait let me try to get a better photo there

wild linden
wraith heart
#

No, his exponents are incorrect

wild linden
#

Ah

wraith heart
#

He did -3 + 1 = 4 somehow

wild linden
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In the circled area?

wraith heart
#

Yes

wild linden
#

Yeah I thought something was wrong, but so much was going on, that I wasn't completely confident on what

wraith heart
#

Indeed.

arctic violet
arctic violet
arctic violet
#

$Y = (2e^x) + [e^{3x} (C_1x + C_2)]$

rocky lotusBOT
#

Awaww🦑

wraith heart
wraith heart
# arctic violet

Did you distribute the exponential under the derivative on the third line on the left

arctic violet
wraith heart
wraith heart
arctic violet
#

am sorry haha

#

oohhhh

arctic violet
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i got the same answer with the 2nd method

#

.close

vale dockBOT
#
Channel closed

Closed by @arctic violet

Use .reopen if this was a mistake.

vale dockBOT
#
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mental skiff
#

Need help with this question

vale dockBOT
mental skiff
#

!status

vale dockBOT
#
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
mental skiff
stark wedge
#

there's no need to !status yourself btw you can just explain yourself without

mental skiff
#

okok i just did for clarity

stark wedge
#

show your progress tho

mental skiff
#

So like i was trying to find a relation between an-1 and an

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i even tried finding values for ak for like from 0 to 4

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but they have no relation

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like a0=1 , a1=1/2 , a2=1/12, a3=0 and a4=-1/720

stark wedge
#

some commas would have helped

mental skiff
#

ok

stark wedge
#

hm. seems tricky.

#

maybe trying to look at the generating function of these a_n would help

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(using the relation between them to derive some kind of form for it)

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not yet sure how exactly but thats the only idea coming to mind rn

mental skiff
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True but like i am stuck at this point

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Look could we manipulate the fact that P(n) has utmost a degree 0f 2024

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Like for maybe at max 2024 numbers

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P(n)- this summation * n! is 0

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hello?

#

hello ?

#

Ann?

stark wedge
#

jeez louise

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i was gone for <5 minutes

mental skiff
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what ?

stark wedge
#

also do we know that deg(P) ≤ 2024?

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cause i am not sure about that.

mental skiff
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i k thats why i did not ping

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i waited

stark wedge
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ok but you still acted rather impatient