help-17

[vocal sleet]

Available help channel!

Send your question here to claim the channel.

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

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

[edgy sundial]

I don't really get the second activity parallelogram UVWX. The first part of the activity the KJHG that I needed to find the similar number

4.) Jh= 8 since it is its pair
5.) Lh= 6 because it is it's pair also
6.) Kh= 6+6=12 since lh is 6 and kl is also 6

But since the uvwx problem have their own number should I use the same method I used with the kjmg? This lesson is called quadrilateral thankyou!

[fair thorn]

you mean 7)?

[edgy sundial]

Yes starting from number 7.)

[fair thorn]

WZ and UZ are a pair (using your notation)

[edgy sundial]

Oh ok do I still need to use the same method I use on the 4.) TO 6.) Activity?

To*

[fair thorn]

yes

[edgy sundial]

Oh ok thankyou!

.close

[vocal sleet]

Channel closed

Closed by @edgy sundial

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[ornate spoke]

hi, i need help on limits with sin(x) type of stuff

[ornate spoke]

do i analyze the behavior of sin as it would naturally approach the (x) value?

ex: limx->0 sin(x)/sin(sqrtx)

i don't know if this is 0 or 2/1

[fair thorn]

multiply and divide by x

use sin x/ x = 1

[ornate spoke]

so sin(x)/sin(x^2) = 1?

[viral copper]

$\lim_{x \to 0} \frac{\sin x}{\sin \sqrt x}$

[twin meteor]

NEONPerseus

[viral copper]

This is your question?

[ornate spoke]

yes

[viral copper]

$\lim_{\theta \to 0} \frac{\sin \theta}{\theta} = 1$

[twin meteor]

NEONPerseus

[viral copper]

Do you know of this?

[ornate spoke]

i do, but don't understand how it applies

[stone terrace]

I think it would make sense to look at the taylor expansions here, have you ever done such a limit?

[viral copper]

I think that would over complicate it

[fair thorn]

no

[viral copper]

You need to try and manipulate the limit such that you get something like that

[stone terrace]

That is a fair concern, but I also dont see where you're going with this

[viral copper]

I hope you know the algebra of limits?

The limit of a sum, difference, product, and quotient, is the sum, difference, product and quotient of the limits

$\lim_{x \to 0} \frac{\sin x}{x} \cdot \frac{1}{\frac{\sin \sqrt x}{\sqrt x}} \cdot \sqrt x$

[twin meteor]

NEONPerseus

[viral copper]

@ornate spoke Do you understand this?

[ornate spoke]

ohhhh

that does make sense

[viral copper]

You should be able to compute this limit quite easily now

[vocal sleet]

@ornate spoke Has your question been resolved?

Channel closed

Closed by @ornate spoke

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[vast shale]

600x+600y+200z=52000

15x+6y+kz=1170

60x+30y+10z=4100

how to find the value of k in 3x3 simultaneous equation please help

[vast shale]

<@&286206848099549185>

<@&286206848099549185>

[sterile forum]

Stick to pinging Helpers only once, please.

[vocal sleet]

@vast shale Has your question been resolved?

[vocal sleet]

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

[vocal sleet]

Available help channel!

Send your question here to claim the channel.

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

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

[silver timber]

Hi does n*sin(n) has no limit bc we dont know if sin(n) will be equal to +1 or -1 ?

[peak matrix]

as n approaches infinity?

If so, then yes, it's related to the fact you mentioned, but some functions like sin(n)/n have the limit (equal to 0 in this case) although we dont know whether sin(n) will be +1 or -1.

[vocal sleet]

@silver timber Has your question been resolved?

[vocal sleet]

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

[vocal sleet]

Available help channel!

Send your question here to claim the channel.

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

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

[echo plaza]

ok the numerator is an arithmetic sequence, and the denominator is a geometric. how could i seperate them though? i need a hint

[hard atlas]

what would you get if you differentiate sum x^k

[vocal sleet]

@echo plaza Has your question been resolved?

[echo plaza]

wdym by differentiate?

[hard atlas]

derivative? have you not had these yet?

[crisp breach]

Assume the value to be S , divide the series by 3
Then do S-S/3, you will get a pure gp

[viral copper]

You can just divide the series by 3 and subtract to get a GP

[echo plaza]

cant use calculus

[crisp breach]

Apply the formula of gp summation afterwards

[viral copper]

Although I do agree the derivative would be hella faster

[echo plaza]

ah

i see

[echo plaza]

it probably would

bu thanks everyone!

.close

[vocal sleet]

Channel closed

Closed by @echo plaza

Use .reopen if this was a mistake.

[vocal sleet]

Available help channel!

Send your question here to claim the channel.

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

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

[quick fjord]

you are going to have to be more specific

[vocal sleet]

@knotty canopy Has your question been resolved?

[vocal sleet]

@knotty canopy Has your question been resolved?

[vocal sleet]

@knotty canopy Has your question been resolved?

[vocal sleet]

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

[vocal sleet]

Available help channel!

Send your question here to claim the channel.

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

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

[vivid gyro]

hello!
i had this question in my maths exam and i still don't know what to do. even though i know what a would have to be for the quadractic equasion to only have one x=0, i don't know how the e bit influences the result.
would be glad if someone could help me with this! thanks 🙂

[vivid gyro]

not sure whether the terminology is correct, im from germany

[frozen bobcat]

"exactly one x=0"? or exactly one x such that f(x) = 0?

[vivid gyro]

yup, thats what i meant

not sure if you can translate it like that but i meant zero points

wait i think i already solved it

.closr

.close

[vocal sleet]

Channel closed

Closed by @vivid gyro

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[steep edge]

Help

[vocal sleet]

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'm told it's wrong
4. I got an answer and would like my work checked
5. I have a question about someone else's worked solution
6. None of the above

[crimson jetty]

Would you. Check. the first. time. you asked.

Garlic gave you a hint

asking another 10 times wont change that hint

If youre still stuck then show your progress

[vocal sleet]

@steep edge Has your question been resolved?

[crimson jetty]

Then why don't you ask that directly

You couldve asked them that rather than closing the channel the first time round

(for reference, i dont know)

uve opened so many channels that i cant even see the hint I was referring to

I couldve sworn I saw Garlic send a hint related to ST being a diameter for some reason

[steep edge]

I am sorry Im new

What can I do now??

[crimson jetty]

What you need to prove looks a bit loke the intersecting chord theorem to me

Oh nvm I see why

Thats my hint

SFET lie on a circle

see if you can figure out why.

This question basically only requires you to know your circle theorems

[steep edge]

What is the circle theorem??

[crimson jetty]

All theorems in geometry

that involve a circle

[crimson jetty]

this is one of them

you need another 1-2 I think

[steep edge]

Can't i solve it with trigonometry??

[crimson jetty]

Probably, but I don't see the need.

I don't know how myself.

try some similar triangles stuff

[steep edge]

Can you please try to solve it and send a pic of the solution

[crimson jetty]

No we don't do that.

#rules #❓how-to-get-help

[steep edge]

Can you tell me more about the interesting chord theorem

[crimson jetty]

look it up.

[steep edge]

Ok

Ok so according to the theorem FO.OT=SO.OE how to proceed

??

[crimson jetty]

Not going to help further than the hints I gave above, gtg.

[steep edge]

Do you know how to solve it

??

[hybrid flicker]

you can also solve it with a horrific amount of pythagoras's theorem

[steep edge]

Can you teach me to solve it in the circle way please

I want to learn

I m getting it a little

What to do next

How to proceed??

Please help

[hybrid flicker]

the chords theorem tells you that SI·IE = TI·IF = r^2 - d^2, with I the intersection point, r the radius of the circle and d the distance between the center of the circle and the intersection point

[steep edge]

So how can I use it here

I suck at geometry man😭😭😭😭😭😭😭😭😭😭😭😭😭😭

[hybrid flicker]

well, first of all, what is the radius here?

[steep edge]

Half ST

[hybrid flicker]

yes!

[steep edge]

Ok!!

What's next

How do you know so much

[hybrid flicker]

to be honest my competences in geometry problems are limited

[steep edge]

Which standard are you in

??

[hybrid flicker]

i'm in engineering school

[steep edge]

I am just in 10th

Can you tell me how to proceed please

[hybrid flicker]

to be honest I do not know if this whole chord theorem is going somewhere, unless you're willing to go for the leap of faith that ST and IO (O being the center of the circle) are perpendicular

[steep edge]

Ok thanks for the help

You helped me a lot

@crimson jetty thanks to you also

[hybrid flicker]

wait I can show you a solution with pythagoras

[steep edge]

Ok

Show me

[hybrid flicker]

So, let's use pythagoras's theorem that ST^2 = SE^2 + ET^2

and use pythagoras's theorem again to get ST^2 = (SR^2 - RE^2) + ET^2

This was the first step

our second step is to use the other right triangle in which ST is, can you find which one ?

[steep edge]

SFT ?

Or SET?

[hybrid flicker]

correct !

[hybrid flicker]

we already used this one

[steep edge]

Oh

Ok

[hybrid flicker]

So, can you use pythagoras's theorem on SFT?

[steep edge]

ST²=SF²+FT²

Whats next??

[hybrid flicker]

alright, next we will want to get rid of the FT^2 term, because it will not be useful for us

maybe using pythagoras's theorem on another triangle ?

[steep edge]

ST²=SF²+(RT²-RF²)

[hybrid flicker]

Correct !

So, ST²=SF²+RT²-RF² = SR² - RE² + ET²

our trick now is to write that ST² = 1/2*(ST²+ST²)

so ST² = 1/2(SF²+RT²-RF² + SR² - RE² + ET²)

Now, let's note that RT² = (RE + ET)²

Can you expand that?

Actually sorry

Even though what I wrote is true, it will not help us here

What WILL help us though, is that RE = (RT - TE)²

now, can you expand that?

[steep edge]

RE²=RT²+TE²-2RT.TE

[hybrid flicker]

correct!

Let's also use that RF = SR - SF

so what is RF² ?

[steep edge]

SR²+SF²-2SR.SF

[hybrid flicker]

Yes!

[hybrid flicker]

Now all you're left to do is use what we've written about RE² and SR²

[steep edge]

Thank you so much for your help 😊😄

[hybrid flicker]

no problem 👍

[steep edge]

.close

[vocal sleet]

Channel closed

Closed by @steep edge

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

Channel closed

Closed due to the original message being deleted

[vocal sleet]

Available help channel!

Send your question here to claim the channel.

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

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

[clever quartz]

How can i find the sum of this power series

[clever quartz]

i know that this is the result but i have no idea how to reach it

a>0

i found that the radius of convergence is R = 1/e^a

[vocal sleet]

@clever quartz Has your question been resolved?

[clever quartz]

<@&286206848099549185>

[vocal sleet]

@clever quartz Has your question been resolved?

[vocal sleet]

@clever quartz Has your question been resolved?

[vocal sleet]

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

[vocal sleet]

Available help channel!

Send your question here to claim the channel.

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

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

[sterile hollow]

what do they mean by "compare this to the actual error you found in part a)"?

[vocal sleet]

@sterile hollow Has your question been resolved?

[sterile hollow]

<@&286206848099549185>

[sullen estuary]

find the approx using t10 then find the actual error by |actual value - approx|

in part b find the difference between that and error found using Et

[sterile hollow]

i found the results

im just confused with what they mean by compare

[vocal sleet]

@sterile hollow Has your question been resolved?

[sullen estuary]

i assume compare as in how similar they are

are they super accurate to each other or are they not

is one signifcantly bigger than the other, etc..

[sterile hollow]

ah alright

ill take note of that, thank you very much 🙂

[vocal sleet]

Channel closed

Closed by @sterile hollow

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[versed knoll]

How do you prove that segment ad is parallel to segment bc?

[vocal sleet]

@versed knoll Has your question been resolved?

[versed knoll]

<@&286206848099549185>

[cursive turret]

what does AD || BC mean for the (four) angles at D?

[vocal sleet]

@versed knoll Has your question been resolved?

[versed knoll]

Pareller

[cursive turret]

if this should be an answer to "what does AD || BC mean for the (four) angles at D?" I do not understand it.

[versed knoll]

So ab is parallel to dc and angle a is congruent to angle c

This stuff is given

And now you’re trying to prove that ad is parallel to bc.

[vocal sleet]

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[cobalt fiber]

h

[cobalt fiber]

am i doing this right

[cobalt fiber]

<@&286206848099549185>

so 7.5 rev/min is angular velocity and 188.5in/min is linear velocity?

help please

[viral copper]

youre right

,calc 60*pi

[twin meteor]

Result:

188.49555921539

[viral copper]

yes

[cobalt fiber]

So angular velocity is literally just the rev/unit

Nothing else needed

And then v=rω to solve for linear velocity

[viral copper]

rev/unit?

[cobalt fiber]

So like in this case it’s rev/min

[viral copper]

$\bar{\omega} = \frac{\Delta \theta}{\Delta t}$

[twin meteor]

NEONPerseus

[viral copper]

Yeah the change in angular displacement by the time interval

[cobalt fiber]

Is that the angular velocity

This is for precalc

[vocal sleet]

@cobalt fiber Has your question been resolved?

Channel closed

Closed by @cobalt fiber

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[left grotto]

Last part of question 6

[icy flower]

,rotate

[vocal sleet]

@left grotto Has your question been resolved?

[vocal sleet]

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

Channel closed

Closed due to the original message being deleted

Available help channel!

Send your question here to claim the channel.

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

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

[fallow solstice]

n(U) = 200
n(A’ and B’ and C’) = 25
n(A’ and B and C’) = 15
n(A and B) = 20
n(A and B’ and C) = 10
What is n(A) n(B) n(C)

[fallow solstice]

This is a 3 circle venn diagram

i can’t seem to figure it out

[vocal sleet]

@fallow solstice Has your question been resolved?

[vocal sleet]

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[modest cedar]

For part a, how would I find the slope?

[tall ore]

Are you struggling to show dy/dx = that thing, or is it that you don’t know how to get gradient or tangent from the differentiated equation

[modest cedar]

Honestly both

[vast shale]

Damn

[modest cedar]

Fr

[vocal sleet]

@modest cedar Has your question been resolved?

[mental junco]

for part a: the equation of tangent is y = mx + c

to find m: just substitute (-1, 1) in the dy/dx given in the question
to find c: just substitute (-1, 1) in your new equation that you get after getting m

[mental junco]

part b is basically asking you to find all points where dy/dx is undefined,

so you will just say that this happens when 3y^2 -x = 0

[modest cedar]

Ohhh, I didn't realize undefined points would be vertical

Okay thank you so much

[mental junco]

welcome

[modest cedar]

Oh so for part b would it come out as coordinates?

Like (0,0)

?

Wait nvm it states that in the problem

[vocal sleet]

@modest cedar Has your question been resolved?

[vocal sleet]

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[desert hornet]

$$\sin^x(x) = e^{x\cdot\log\sin(x)}$$

[twin meteor]

kheerii

[desert hornet]

absolutely not

no downloads

show me your work

$\sin x^x \ne \sin^x(x)$, but otherwise you're correct

[twin meteor]

kheerii

[crimson jetty]

the hell is this file

please delete

looks like a suspicious file like it is

[vocal sleet]

Channel closed

Closed by @bitter grotto

Use .reopen if this was a mistake.

[vocal sleet]

Available help channel!

Send your question here to claim the channel.

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

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

[gaunt panther]

need some help on iii plz

the intersection point of the planes is (1, -2, 0)

ive done this so far

these r the formulas in the formula booklet

[vocal sleet]

@gaunt panther Has your question been resolved?

[rugged orchid]

Shouldn’t the intersection of 2 planes be a line

How did you get a point

[gaunt panther]

look at part b

u find a point

from the point u then find a line

i think

[rugged orchid]

Part b doesn’t find a point it finds an angle

Oh no that’s part ii

[gaunt panther]

yh

[rugged orchid]

Ah

Well that point doesn’t necessarily have to be the shortest

[gaunt panther]

so how do i find the line of intersection of the plane when i only have their intersection point

[rugged orchid]

Well the intersection of 2 plane should be a line you can just find

So x-2y-5=2x+3y-z+4 describes a line in 3d that satisfies to be on plane 1 and plane 2

You just need to find the shortest path from point A (4,0,-1) to this line

[vocal sleet]

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[crimson sedge]

wouldn't you have to make the equation into cartesian equation first?

[vast shale]

Why? The integral's upper and lower limits are polar

Well, it's not a polar integral

But the integral is fine

[crimson sedge]

so is $\int y\frac{dx}{dt}$ a rule?

[twin meteor]

yomiko

[crimson sedge]

nvm i found a video on it

.cflose

.close

[vocal sleet]

Channel closed

Closed by @crimson sedge

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[tranquil lodge]

I put 22=39x-5x^2 into Desmond but I’m not sure which number is the right one

[lime gorge]

Hmmm

Desmond

Yea so show what u got

[crimson sedge]

what did you get t as

[tranquil lodge]

I’m not sure if it’s 0.612 or 7.188 or

[dense stump]

"Find all values of t"

[tranquil lodge]

So 0.612

And another one

[dense stump]

You said both lol

[tranquil lodge]

oh

So if they get rounded

To nearest hundredth

Would it be 0.61 and 7.19

[dense stump]

For this kinda question, you should prob think of a rocket. it's gonna go up and back down and therefore hit 22 feet at 2 different times

[dense stump]

Yes

[tranquil lodge]

YESSSSIR

thx lads

[dense stump]

np

[lime gorge]

Model rocket

[open cave]

Model rocket

Model. Rocket.

[lime gorge]

Look first 2 words Xd

[dense stump]

pretend I said nothing

[dense stump]

[lime gorge]

Me when blighter blights

[crimson sedge]

wait where is it?

[vocal sleet]

@tranquil lodge Has your question been resolved?

Channel closed

Closed by @tranquil lodge

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[crimson sedge]

where did i do wrong

this is the rest of the working out

[silk comet]

how did you integrate sin^3(t)?

why not substitute u = cos(t) in your first line?

[crimson sedge]

$\int 2sin^3t dx$ \ $y = (sint)^4$ \ $\frac{dx}{dy} = 4(2sin(t))^3 \cdot -2cos(t)$

[twin meteor]

yomiko

[crimson sedge]

I've done it wrong

i didin't compare

[vocal sleet]

@crimson sedge Has your question been resolved?

Channel closed

Closed by @crimson sedge

Use .reopen if this was a mistake.

[vocal sleet]

Available help channel!

Send your question here to claim the channel.

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

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

[limber snow]

I have a question, I was watching a video tutorial on vector calculus. I was wondering how do you compute this. In what other do you multiply and combine like terms?

[limber snow]

.close

[vocal sleet]

Channel closed

Closed by @limber snow

Use .reopen if this was a mistake.

[echo plaza]

oh wait

sorry

you can reopen @limber snow

[limber snow]

Np I open another one

[vocal sleet]

Available help channel!

Send your question here to claim the channel.

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

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

[brazen veldt]

so I know that F is not conservative but G is

lmk if anyone knows what to do here

is r(t)= < -3- 4t, 0>?

where I am stuck is how do I approach this?

[vocal sleet]

@brazen veldt Has your question been resolved?

[main spade]

The path in the diagram is not a straight line from A to B. You must first have a curve which is the line segment from (-3, 0) to (-1, 0). Then a circular curve as shown in the diagram.

I'd approach it like this. I'd calculate c_2 in the opposite direction since you can then use standard polar coordinates and then just take the negative of that result and add it to the line integral over the first line to get the desired result.

[vocal sleet]

@brazen veldt Has your question been resolved?

[vocal sleet]

Channel closed

Closed by @brazen veldt

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[haughty spoke]

I need help

[haughty spoke]

So we’re doing statistic for the Central Limit Theorem to Compute a probability but the problem is that I don’t know how they get the number 0.7517 and they didn’t really fully explain on how they got to that number to find their final answer 0.2483?

[paper depot]

I don’t know how they get the number 0.7517
z-tables or calculator

actually no

they explicitly say they got it from a table

[haughty spoke]

Yeah I have a table that my professor gave me and it doesn’t have that exact number

[paper depot]

show me your table

[haughty spoke]

This is the table

[vocal sleet]

@haughty spoke Has your question been resolved?

[cyan marsh]

Hey, I have questions relating to logics gates, algebraic expression and standard deviation if any can help!

[vocal sleet]

@haughty spoke Has your question been resolved?

[vast shale]

you should always send the question

[cyan marsh]

oh okay ill send now!

[vocal sleet]

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[dusky glacier]

anyone can help to solve this problem?

[dusky glacier]

which option should choose then?

[paper depot]

okay i did NOT mean to send a super react on that one

[vocal sleet]

@dusky glacier Has your question been resolved?

[vocal sleet]

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[quasi cypress]

.open

.open

if abc = 1, prove this statement

[vocal sleet]

@quasi cypress Has your question been resolved?

[quasi cypress]

<@&286206848099549185>

[cerulean compass]

I think you can prove by induction here

[quasi cypress]

how tho?

[cerulean compass]

Or you can just simplify it

like a/b+c/d=(ad+cb)/bd

[quasi cypress]

i still dont understand

[cerulean compass]

Then all the inverses should just cancel out

[quasi cypress]

if u would mind, can u prove with steps?

[cerulean compass]

For now combine the fractions

Into one

[quasi cypress]

im not getting that much of an insight, sorry

alright wait

b/ab+1+b + c/bc+1+c + a/ac+1+a

what should i do now

[cerulean compass]

You can combine the fractions like so

Into 1 fraction

[cerulean compass]

Also that won’t work

Since you would also have to apply to the other side

Well I guess it could work

[cerulean compass]

Didn’t read the top part

[quasi cypress]

oh

alright

thats why i was confused

how do it do it then?

[cerulean compass]

I would substitute in abc in from 1 and try to simplify

[quasi cypress]

wait nvm i understand now

thank you

.close

[vocal sleet]

Channel closed

Closed by @quasi cypress

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[unreal sparrow]

Did i answer this correctly?

[vocal sleet]

@unreal sparrow Has your question been resolved?

[vocal sleet]

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

[vocal sleet]

Available help channel!

Send your question here to claim the channel.

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

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

[paper depot]

troll

[lost yarrow]

please dont waste helper time with shitposts

[paper depot]

how old are you

[lost yarrow]

.close

[vocal sleet]

Channel closed

Closed by @lost yarrow

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[restive fulcrum]

i need help with series of tasks involving this function

[vast shale]

just send the questions man

[restive fulcrum]

1. Domain
2. Odd or even?
3. N0
4. Vertical horizontal and oblique asimptote
5. Local extremes, intervals of monotony
6. Points of inflexion, concavity and convexity
7. Make a graph

[flat whale]

doing 7 will help you do the rest

[restive fulcrum]

on the graph the function doesnt matter only the points asked of me

[flat whale]

oh

[restive fulcrum]

domain is x=/=3 right?

[flat whale]

how did you get that

[restive fulcrum]

the number in the bottom of fraction musnt be 0

[flat whale]

do you know how to solve x^2 = 9?

there are two solutions

[restive fulcrum]

i get -x^2=-9

isnt that just x=3

[flat whale]

no

x^2 crosses 9 at two different x

[restive fulcrum]

so how do i get the solution

[flat whale]

do you know how to plot x^2?

or algebra rules for square root?

[restive fulcrum]

not quite

[flat whale]

https://www.mathsisfun.com/algebra/square-root.html

[restive fulcrum]

so its 3 and -3?

[flat whale]

yes

[restive fulcrum]

just different +/-?

alright so is it odd or even?

[flat whale]

check the definition of odd and even and see if your function satisfies one of them

https://www.mathsisfun.com/algebra/functions-odd-even.html

[restive fulcrum]

i know even means its symetrical to y and odd and its symetrical to the centre

someone told me easiest way to check is just to input f(0) and if the functions arent the same after input its odd is that true?

[flat whale]

use the algebraic equation definition in the link

[flat whale]

f(0) = 0 for all odd functions yes

[restive fulcrum]

so if input f(0) or f(-x) and its not the same as the base function its odd?

[flat whale]

i don't know how you conclude that

[flat whale]

where in this link does it say that

[restive fulcrum]

i dont understant that well, if you were to solve this how would you

[flat whale]

check that equation

[restive fulcrum]

so -x^2/9-x^2 must be equal to f(-x)?

[flat whale]

if it's odd, yes

[restive fulcrum]

so its odd in this case

oh wait nvm

its even

so next for horizontal asimptote i got 1/8 is that correct?

<@&286206848099549185>

[flat whale]

no

[restive fulcrum]

how so

[flat whale]

https://www.cuemath.com/calculus/asymptotes/

[restive fulcrum]

isnt it lim->1 of the function

[flat whale]

no where do you get that from

[restive fulcrum]

thats how we solved it in class

[flat whale]

are you reading this line

H.A. stands for horizontal asymptote

[flat whale]

read this

[restive fulcrum]

oh my bad i meant vertical

[flat whale]

read

[flat whale]

do you know what a is in your case ?

[restive fulcrum]

the number i decide my limit to go towards

[flat whale]

it's not something you decide

the problem decides it for you

[flat whale]

again, read this

[restive fulcrum]

sorry i cant understand it

is a= f(x)=0?

[flat whale]

no

you did that in part 1

[flat whale]

.

[restive fulcrum]

so a=3?

[flat whale]

that's one of the VAs yes

[restive fulcrum]

ok so for the other 2 asimptotes i just plug in infinity and lhopital it till it gives me a normal number?

[flat whale]

what are you doing now

[restive fulcrum]

horizontal asimptote is just pluging infinity in right?

and oblique asimptote is just pluging infinity into f(x)/x which gets me K and then i get L by inputting infinity into f(x) -Kx

y=kx+l

.close

[vocal sleet]

Channel closed

Closed by @restive fulcrum

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[cinder oyster]

Hello

Before i do anything here should i get rid of that 2 infront of the X

[thin vale]

that you should

[ornate seal]

Factor out coefficient of x^2 you meant

[vocal sleet]

@cinder oyster Has your question been resolved?

Channel closed

Closed by @cinder oyster

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[vast shale]

Is my graph correct

[formal pond]

clean your screen bro

[rugged bolt]

@vast shale Yes its good

[vast shale]

Ok I need help with this

[rugged bolt]

Think about it

[vocal sleet]

@vast shale Has your question been resolved?

[vast shale]

So u don’t know

[rugged bolt]

Doesn't matter if I know or don't know, did u think?

[potent stirrup]

?

[vast shale]

What

[potent stirrup]

stop questioning the integrity of helpers, else try to follow the steps advised.

[vocal sleet]

@vast shale Has your question been resolved?

[vocal sleet]

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[vast shale]

This whole page

[rose raft]

all?

[vast shale]

well

okay maybe the first one

to start

how in the name of god do I find the central angle measure

idek what that means

[vast shale]

OH

TYSM ❤️❤️

[trail mesa]

your welcome

[vocal sleet]

@vast shale Has your question been resolved?

Channel closed

Closed by @shadow karma

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[vocal sleet]

@shell magnet Has your question been resolved?

Channel closed

Closed by @shell magnet

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[vast shale]

Help

[vast shale]

I got this

Is this correct?

[sullen estuary]

that looks right

[vocal sleet]

@vast shale Has your question been resolved?

[vocal sleet]

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[tiny trench]

Hi so

[tiny trench]

Ive been doing some factoring and stuff today

i was doing some basic stuff and all of a sudden a number is infront of the X

2x^2+7x-4

Like its not starting with x^2

like perfect sq

rather it has a number so Im not sure how i would start that one

[rugged vortex]

You'd have to think about factors of the leading coefficient. More so, I'd like to deal with the positive factors of it

So in this case, your leading coefficient is 2, whose positive factors are 1 and 2

Since we only have two factors, we don't need to fret: it implies that 2x^2 + 7x - 4, if factorable, can be broken down into (2x + a)(x + b). If you foil this out:

2x^2 + (2b + a)x + ab = 2x^2 + 7x - 4

This also implies:

2b + a = 7
ab = -4

In words, find two factors that multiply to -4, but the sum of one plus double the other equals to 7

[tiny trench]

:think:

[cinder oyster]

I do on my paper and show right after

if u want

[tiny trench]

na its ok i am trying to do it and ill show

Oh i forgot to mention

THat part of this is to find the domain

Let me upload the picture of my work

Looks good?

And by the way

The domain how woukd it be

it says to write in interval not

like this one?

[summer lichen]

,rotate

[summer lichen]

,w find the roots of 2x^2 + 7x -4

[twin meteor]

Results provided by WolframAlpha

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

Requested by keto11#8349

[tiny trench]

Oh man i make a mistake

and i see it

i took out a positive 4

and wrote it as a negative later on

i think

should be x+4 ah man

[summer lichen]

I would have grouped them differently

maybe as (2x^2 + 8x) + (-x -4)

but it should be the same either way

[tiny trench]

I really have to stop making this tiny mistakes

Mid term tomorrow and i constantly do these things

IM gonna redo every problem on taht test like 3 times

[summer lichen]

so what did you get for your answers?

[tiny trench]

I take picture and make upload

[summer lichen]

okay

[tiny trench]

New domain i make a arrow next to it

[summer lichen]

why'd you write the domain with all those unions?

[tiny trench]

the equestion make me put in interval notation only

Oh that not how i do it?

[summer lichen]

That is the correct notation, but you don't need the unions.

[tiny trench]

Oh

[late ingot]

if you think about it, you can simplify the intervals you got to (-inf, +inf) as the domain.

[tiny trench]

Ah that is good idea

Would be easier thanks

[late ingot]

conveys the same information.

no need for more than one interval here since there are no restrictions requiring it.

[vocal sleet]

@tiny trench Has your question been resolved?

[vocal sleet]

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[hasty drum]

I have a point estimator $\hat{\mu }=\frac{n\overline{Y}}{n+\lambda }$. I have shown that this is unbiased when $\lambda = 0$. I used $E\left[\overline{Y}\right]=\mu$ to show this. My next goal is to show the bias and MSE of $\hat{\mu }=\frac{n\overline{Y}}{n+\lambda }$ when $\lambda > 0$. I calculated the bias to be $\frac{n}{n+\lambda }\mu -\mu$ and the MSE to be $\left(\frac{n}{n+\lambda }\right)^2\cdot \frac{\sigma ^2}{n}+\left(\frac{n}{n+\lambda :}\mu :-\mu :\right)^2$. My next goal is to show that for some $\lambda$, $MSE[\hat{\mu}] < MSE[\overline{Y}]$. I have run into issues here. Thanks! 🙂

[twin meteor]

catnwaffles

[vocal sleet]

@hasty drum Has your question been resolved?

[hasty drum]

<@&286206848099549185>

[vocal sleet]

@hasty drum Has your question been resolved?

[vocal sleet]

@hasty drum Has your question been resolved?

[vocal sleet]

@hasty drum Has your question been resolved?

[rapid swift]

well, actually lemme ask

what do you think the MSE of [Y bar] is?

[hasty drum]

sigma^2/n since E[Y Bar] = mu

I think I solved it with lambda = sigma^2/mu^2 by taking the derivative of the RHS with respect to lambda, setting it equal to 0. That lambda is sigma^2/mu^2. Then it is a simple argument to show the inequality holds for that

[rapid swift]

you can actually get away with not solving that minimization problem I think

if you evaluate the derivative of the MSE wrt lambda for the shrunk estimator at 0, you'll find that it's not zero

[hasty drum]

whats the definition of a shrunk estimator?

[rapid swift]

I mean the estimator you're given here

I called it "shrunk" because the thing is shrinking it

okay yeah

so if you compute the derivative of the MSE, you get

$- \frac{2 \mu^{2} n \left(\frac{n}{\lambda + n} - 1\right)}{\left(\lambda + n\right)^{2}} - \frac{2 \sigma^{2} n}{\left(\lambda + n\right)^{3}}$

[twin meteor]

Saccharine

[rapid swift]

then if you substitute lambda = 0

this simplifies to

[hasty drum]

Why are we substituting lambda = 0?

[rapid swift]

well I'm calculating the derivative at 0

$- \frac{2 \sigma^{2}}{n^{2}}$

[hasty drum]

ah alright

[twin meteor]

Saccharine

[rapid swift]

you get this

this is always negative by assumption

so suppose we say that M(x) is the MSE of the estimator at lambda = x

we know that M(0) = MSE[Y bar], since the estimator coincides with Y bar if lambda = 0

and further, we know that M'(0) < 0

so therefore, by some real analysis proof that you can do, there exists an x such that M(x) < M(0)

or you can just say it's intuitively obvious

I believe the rigorous proof will require some sort of epsilon-delta argument or possibly the mean value theorem

but it's an obvious fact in a sense

[hasty drum]

So $\lambda =\frac{\sigma ^2}{n}$ is incorrect?

[twin meteor]

catnwaffles

[rapid swift]

honestly not sure. I didn't actually evaluate for that

[hasty drum]

math stats is killing me

[rapid swift]

I just gave an argument that doesn't actually rely on picking a specific value for lambda

because I could imagine that computing the MSE for specific lambda is just annoying to do

[hasty drum]

Luckily I only need a 45 on the final to pass this class

[rapid swift]

basically you know that the MSE is decreasing at lambda = 0

so therefore, you can just make lambda = some small number, and you know the MSE will go down

more formally, you know that M(0) = MSE[Y bar], and M'(0) < 0, so therefore, you know there's some x such that M(x) < M(0) = MSE[Y bar]

[hasty drum]

Yeah I just used optimization + inequalities to show it

your way is a lot better

[rapid swift]

I think your particular value of lambda does work, because it's the value that produces the minimum MSE

but you don't really need that

whatever floats your boat I guess

your way is more direct

[hasty drum]

thank you! what book did you use to learn? C&B?

.close

[vocal sleet]

Channel closed

Closed by @hasty drum

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[brisk flume]

how do I find the derivative of this function?

[brisk flume]

I dont know where to even start

[hushed pewter]

You can start by simplifying $x/\sqrt{x}$

[brisk flume]

so x ^ 1/2

[twin meteor]

SWR

[brisk flume]

and i would bring that up to the numerator yes

[hushed pewter]

Yup. Then use power rule

[brisk flume]

when do i involve the -3x into the equation?

+*

helloo?

[hushed pewter]

Take derivative of both terms separately

(f+g)'(x)=f'(x)+g'(x)

[brisk flume]

i dont understand

ive yet to see that method in class

[hushed pewter]

Ah you may want to look it up then. You need it here unless your just doing the basic f(x+h)-f(x) stuff

[vocal sleet]

@brisk flume Has your question been resolved?

[vocal sleet]

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[quaint sphinx]

Just wanna ask if my work is correct

[vocal sleet]

@quaint sphinx Has your question been resolved?

[vocal sleet]

Channel closed

Closed due to timeout

Use .reopen if this was a mistake.

[vocal sleet]

Available help channel!

Send your question here to claim the channel.

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

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

[normal loom]

Can we apply binomial formula to anything??, for example 7^1/5 so we write it as (1+6)^1/5 now the question is the Binomial expansion valid on non integral powers

[normal loom]

If not then what is the formula for fractional powers

[peak matrix]

Im pretty sure it works, but it gives infinite sum

[normal loom]

Oh ok then i will look into it

.close

[vocal sleet]

Channel closed

Closed by @normal loom

Use .reopen if this was a mistake.

[normal loom]

How do i define Sine function for reflex angles using polygons/triangles etc

This is what i mean ,

How do i find Sin A in third case ??

[dull bear]

.reopen

[vocal sleet]

✅

[dull bear]

Before you lose your channel lol

[normal loom]

Thanks

[normal loom]

Oh i just realised its not triangle in third case

But still

Can somebody answer this

[vocal sleet]

@normal loom Has your question been resolved?

[vapid current]

360 - A will be in 4th quadrant

If A is less than 90 degree

Sin is negative in 4th quadrant

So -sinA

[normal loom]

So we can find negative of Sin A but not Sin A for reflex angles

[vapid current]

Sin(360-A) = - SinA

[normal loom]

Yep i thought of that earlier too but still i dont understand how we cannot directly find Sin A if A is reflex

I gotta consult to more people

Thanks for help tho!

.close

[vocal sleet]

Channel closed

Closed by @normal loom

Use .reopen if this was a mistake.

[vocal sleet]

Available help channel!

Send your question here to claim the channel.

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

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

[faint marsh]

I need help with my math homework cause I've been stuck on a problem for half an hour
I'm on independent study atm so it's difficult for me to follow some parts
Here's the problem and an example of the graphic when I input an answer

[astral pilot]

(3X+1)(3X+1)

[sullen thunder]

what about: $(x+9)(x+\frac19)$ ?

[faint marsh]

it has to be a quadratic expression with only integers

[astral pilot]

what abtthis

[faint marsh]

that worked thank you very much!

didnt think about changing the x lol

[astral pilot]

.close

[faint marsh]

well a but whatever

ty

[astral pilot]

type .close

[faint marsh]

.close

[vocal sleet]

Channel closed

Closed by @faint marsh

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[sudden compass]

<@&268886789983436800>

[sullen thunder]

<@&268886789983436800>

[sterile forum]

👍

[inland gyro]

not sure how not sure how to start this

[hybrid fossil]

u sub

[inland gyro]

what do i do from here

[viral copper]

You didn't change the limits

[inland gyro]

what do you mean?

[rough barn]

from the information that integral of f(x-a) from 3 to 5 is equal to 7, you get f(5-a) - f(3-a) = 7

[outer warren]

in the process of substitution,
u = x - a
for your new lower bound, when x=3, u = ?

[vocal sleet]

@inland gyro Has your question been resolved?

Channel closed

Closed by @inland gyro

Use .reopen if this was a mistake.

[vocal sleet]

Available help channel!

Send your question here to claim the channel.

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

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

[half summit]

I got -52/25, is it right?

[half summit]

-2.08 in decimal

$$ \frac{13n^8}{25m^3} $$

[twin meteor]

rynite

[half summit]

but I first simplified the expression to that

then plugged the numbers

[torpid talon]

yeah that looks right

[half summit]

alr, thanks

.close

[vocal sleet]

Channel closed

Closed by @half summit

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[tiny trench]

pls anyone no one wanna answrr me 🥲

[tiny trench]

this is for quadratic form

ula

[strange crater]

What is your question

[tiny trench]

Basically

When i was doing quadratic formula this part

B^2 for me was 9 and -4ac = to -12

so in the square root

would it be 9 - - 12

which basically is 21

[strange crater]

What do you think?

[tiny trench]

to be honest thats what i did in my test

so i believe yes

[strange crater]

And why are you doubting it?

[tiny trench]

because i make mistakes like this too much 🥲

[strange crater]

It's just arithmetic. It would be 21, yes

[tiny trench]

.close thnx

[vocal sleet]

Channel closed

Closed by @tiny trench

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

Channel closed

Closed due to the original message being deleted

[vast shale]

A is the point (-5,2). B is the point (7,-2). C is the point (-2,5)
b) find the equation of the line perpendicular to line AB and passing through point C <@&286206848099549185>

[strange crater]

!15m

[vocal sleet]

Please only use the <@&286206848099549185> ping once if your question has not been answered for 15 minutes. Please do not ping or DM individual users about your question.

Please only use the <@&286206848099549185> ping once if your question has not been answered for 15 minutes. Please do not ping or DM individual users about your question.

[vast shale]

bro u gonna help me or not

<@&286206848099549185>

help me

A is the point (-5,2). B is the point (7,-2). C is the point (-2,5)
b) find the equation of the line perpendicular to line AB and passing through point C

[vocal sleet]

Available help channel!

Send your question here to claim the channel.

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

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

[feral sentinel]

why divide by (5n) and not just (5)?

[feral sentinel]

use u = cos^(n-1)(5t) and dv = cos(5t)dx

I get v = sin(5t)/5

where did the n come from?

[strange crater]

The exponent for cosine

[feral sentinel]

but when integrating by parts, uv doesn't have an n term in the denominator

uv = cos^(n-1)(5t) sin(5t)/5

did i miss a step?

[strange crater]

isn't it $uv - \int v du$?

[twin meteor]

cwatson

[tawny lily]

i know the pythagore

[feral sentinel]

ye but im asking about the answer to F(x)

so we just look at the uv part?

[pale widget]

You need more than just the uv part. You should do the entire integration properly and then match the pieces instead of trying to do only the minimum necessary

[feral sentinel]

i don't think that matters tho. the correct answer to K is (n-1)/n, and I got (n-1)

both terms hav 1/n has a constant and i have no clue where it came from

[vocal sleet]

@feral sentinel Has your question been resolved?

[vocal sleet]

@feral sentinel Has your question been resolved?

[vocal sleet]

@feral sentinel Has your question been resolved?

[feral sentinel]

unless there's an error with the solution

.close

[vocal sleet]

Channel closed

Closed by @feral sentinel

Use .reopen if this was a mistake.

[pale widget]

There comes a critical step when people give you advice that you need to follow it instead of just assuming there is an error and the suggestion is irrelevant.

[vocal sleet]

Available help channel!

Send your question here to claim the channel.

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

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

[feral sentinel]

im sorry? i already integrated the whole thing and showed my work to my instructor and we both don't know why (1/n) is in the answer

[feral sentinel]

.close

[vocal sleet]

Channel closed

Closed by @feral sentinel

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[eternal glacier]

Both of these are the same right?

[dusk dew]

No

X doesn't go up to the exponent

It stays beside e with and the x would be raised to negative 1

[eternal glacier]

I thought +x in exponent is multiply by x? Wouldn’t -x in exponent be divide by x?

[spiral inlet]

$e^{2-x} = \frac{e^2}{e^x}$, not $\frac{e^2}{x}$

[dusk dew]

No

[twin meteor]

tatpoj

[eternal glacier]

Oh right.. ty

[fiery raptor]

Wow genius

[eternal glacier]

So 2^(2+1) would be 2^3 = 8?
Or also 2^2 * 2?

[spiral inlet]

both

[dusk dew]

2^2 all times 2

Or u mean 2^(2*2)

[eternal glacier]

All of these are correct?

[dusk dew]

Yeah

[eternal glacier]

Ty

.close

[vocal sleet]

Channel closed

Closed by @eternal glacier

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[near carbon]

Could someone help me with he second part of the question pls

I’m not sure how to answer

[rose raft]

!status

[vocal sleet]

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'm told it's wrong
4. I got an answer and would like my work checked
5. I have a question about someone else's worked solution
6. None of the above

[near carbon]

1

.close

[vocal sleet]

Channel closed

Closed by @near carbon

Use .reopen if this was a mistake.

Available help channel!

Send your question here to claim the channel.

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

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

[covert salmon]

linear algebra question

[rose raft]

[covert salmon]

This is true right?

[untold helm]

It's right

[covert salmon]

Why?

[dull bear]

,w [[0,1], [0, 0]] * [[0, 1], [0, 0]]

[twin meteor]

Results provided by WolframAlpha

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

Requested by chartbit#3171

[dull bear]

,w [[0,1], [0, 0]] * [[1, 0], [0, 0]]

[twin meteor]

Results provided by WolframAlpha

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

Requested by chartbit#3171

[dull bear]

🧢

[abstract anvil]

Good counterexample

[covert salmon]

How did u think of that so quick?

Like what came to your mind?

[dull bear]

It just felt wrong and usually counterexamples can be simple like that, there was one that was similar and the counterexample there was similar

of course set A, B, C as appropriate and of course they satisfy all they ask haha

[covert salmon]

ty

.close

[vocal sleet]

Channel closed

Closed by @covert salmon

Use .reopen if this was a mistake.

[vocal sleet]

Available help channel!

Send your question here to claim the channel.

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

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

[solemn spear]

im not exactly sure what this is asking

the options are less than or equal to

and greater than or equal to

whats the relationship between x and f(x)? and what does that mean for the derivative function?>

[chrome hornet]

Derivative at a point is the slope of the function at that point now put conditions and find slope at each point

[solemn spear]

yes i know derivative is slope

what does it mean if the x and f(x) are less than or greater than 0 ?

[solemn spear]

.

[chrome hornet]

See the graph on -ve x side

If they are asking for x<0

If for f(x)<0

Then see the graph of -ve y axis

[solemn spear]

-ve?

[chrome hornet]

Negative

[solemn spear]

idk what you mean

[chrome hornet]

For f(x)<0 you have to check for 3rd and 4th quadrants slope

[solemn spear]

you mean 2 and 3?

cause thats where its on the negative side of x

[chrome kite]

for x>0 u check 1 and 4; for f(x)>0 u check 1 and 2

f(x)=y

[solemn spear]

damnit how could i forget that

ok