help-0

[vocal edge]

aah

[alpine sable]

you think you can help me with it?

[vocal edge]

umm wait lemme think.

[alpine sable]

Idfk what
The proportion of Canadian cities whose areas are no larger than various numbers of acres.

means

like that sentence is confusing as fuk

[vocal edge]

umm that's a frequency histogram

[alpine sable]

Yea but what does it mean 🤣 🤣

[vocal edge]

something like this

[alpine sable]

LMFAO

sorry

[vocal edge]

Evaluate cities based on

[alpine sable]

its just rly funny

[vocal edge]

area bins

like some area limits

are the bins

of your histogram

sorry

[alpine sable]

oh

i kinda see

so its like

how big each cities are?

[vocal edge]

yeah

[alpine sable]

why is my mfing teacher's sentence structure so unnecessary confusing

[vocal edge]

it's because of the histogram thing.

you have to assume appropriate bin size.

[granite wind]

Easy

[alpine sable]

based.

[granite wind]

What?

[alpine sable]

and the thrid one is CF

right?

[vocal edge]

this looks like a circle chart to me. Wait I am making up fake data

to see how it turns out

umm

I can't help you

with this

[alpine sable]

like just this question?

[vocal edge]

yeah like I am not really sure

[alpine sable]

sorry but can you go in a call if you are fine with it? cause I got some questions

If you cant

thats all good

[vocal edge]

this is my interpretation of the data

[alpine sable]

Just wondering

[granite wind]

Thats shii is easy

[vocal edge]

I dont have mic

[alpine sable]

Oh

rip lmao

[granite wind]

I've learn that in eight grade or nine

[vocal edge]

could you explain a bit

[alpine sable]

this is grade 12 statistics but okay lmfao

Like I could learn this with a gr9 math ig

[vocal edge]

well I don't remember which plots to use for what.

[alpine sable]

math isnt the hard part its just concepts

annoying asf

[unique tiger]

Can someone explain this to me

Num 9 pls

[alpine sable]

Pop off Ig

[alpine sable]

I dont get how average

household is

6

[night sinew]

is horizontal stretch and vertical stretch the same as the slope?

ex: 5(x+2)^2-3, would 5 be the slope?

[vocal edge]

No. That's a quadratic equation.
Here the slope is y'=10(x+2)

[vocal edge]

umm it was left in the end 🤣

[alpine sable]

Bruh

[vocal edge]

I won't anymore of yo time. sorry
once again

[limber shard]

I am assuming that this chat is free now.

If a,b are real numbers and a<b, suppose we have a interval (a,b). If I write this interval as (b,a) instead will it be wrong?

So for example can I write (2,4) as (4,2)?

[dense trail]

is this interval notation?

pretty sure the smaller value always goes first

[limber shard]

Yes it is interval notation. I also know that smaller value is first, but is writing (4,2) wrong mathematically?

Or it doesn't matter?

[dense trail]

i dont think it will be accepted

[limber shard]

This is the original question. Option A is correct but if I take a_n = n and b_n = 0 in option B then it can be correct as well.

[limber shard]

So I think this method is wrong.

[cinder sonnet]

Hello anyone here

[dense trail]

hmmm i havent learnt this... what does the ∩∞ mean

[ebon prism]

help on finding velocity and acceleration on this

[verbal ermine]

i’m assuming this is a distance function?

[limber shard]

It means (a1, b1] $\cap$ (a2, b2] $\cap$ ...

[ocean seal]

Aarjav

[wanton dawn]

You'll get the equation for velocity when you differentiate once, you'll get the equation for acceleration when you differentiate the displacement function again with respect to time. Put in the given values to find the exact velocity and acceleration at a given moment

[lilac nest]

That works because the velocity is the slope in a displacement/time graph and the acceleration is the slope in a velocity/time graph

[dense trail]

what is this unit called?

[limber shard]

unit?

[dense trail]

like this chapter

[limber shard]

It is just intersection of sets. So I suppose it is taught in chapter named something like sets and intervals.

[dense trail]

kk

[shut goblet]

how do you find an equation (ax+by=c) for a line that goes through two points
(eg. A = (-4, -18) and B = (-4,-11) ?

[placid zinc]

Easier to think about is
y = mx + b

m is easy to calculate at any time as the slope between two points

Then plug one of your points in and grab b

[lunar heath]

what happened to dean

the maffemafiks guy

[shut goblet]

Sorry if this is a bad question, but isnt slope (y2-y1)/(x2-x1) ?

wouldnt i get 7/0

in the example

[placid zinc]

Oh, neat. I didn't take a good look at the two points, so I didn't catch that.

These points form a vertical line

That line is x = -4

[shut goblet]

alright

thing is tho

when doing this in 3d, you take ab x ac and then grab the D on the other side of the = by pugging one of the points. I THINK atleast

so i was wondering how do you the same thing is 2d as you cant really do cross product in 2d

is it just the same as doing y= mx+b?

[placid zinc]

So it sounds like you're describing a plane

[shut goblet]

yeah, it is

[shut goblet]

this is finding the equation to a plane

[placid zinc]

Which is not the 3D analogue of a line

[alpine sable]

can anyone help me, i can't understand anything

[shut goblet]

and the question basically states, find the equation for a line (in the plane) given the points are A = (-4, -18) and B = (-4,-11)

Sorry if im translating this the wrong way

[alpine sable]

@shut goblet sir can you help.

[thin dock]

i love god

[covert juniper]

@alpine sable it is asking you for ordered pairs which are subsets of {1,2,3,4,5} such that neither of them are subsets of each other

[alpine sable]

are they both proper subsets of the P(S)

[covert juniper]

so if i understand correctly you need to find the number of sets of partitions of {1,...,5} then times that by two because it is an ordered pair

[covert juniper]

no they are members of P(S)

so an example would be A={1,2,3,4}, B={5}

and then also B={1,2,3,4}, A={5}

[alpine sable]

i don't understand, what is the difference, they are proper subsets of S{1,2,3,4,5}, aren't they.

[covert juniper]

Yes they are have to be proper subsets of S, because the second restriction is violated if either is the empty set.

[alpine sable]

ok

[covert juniper]

But they are not subsets of P(S), which is the set containing all subsets of S

Do you know what a partition is?

[alpine sable]

no

[placid zinc]

These are not partitions, as
A = {1,2}, B = {2,3}
works

I like how they only skipped 4, and used like 8 dots to do it

[covert juniper]

My bad

[placid zinc]

Still, the real problem starts here. How to count these?

[quartz osprey]

how do i find the relative minimum

like to get 2 is literlly from guessing

on the chart from 0-2 it was all positive

i wold have never guessed that 2 would be a min

[lean hamlet]

how to answer this guys

help ty:)

[waxen spruce]

Help

how do you write a jump continuity

Like when you discuss the continuity

[ionic vault]

write or graph

[waxen spruce]

write

[waxen spruce]

Like if I were to discuss the continutiy of say 1/2|x|+x

[ionic vault]

that function is continuous everywhere

I think you mean, write as in "describe the continuity " ?

[waxen spruce]

Oh sorry

I mistyped the function

Lemme draw what Im talking about

Like a repeating step function

[grizzled sundial]

Please Help

<@&286206848099549185>

[waxen spruce]

so how would you like discuss or describe a step functions continuity

[ionic vault]

oh you would use brackets

or parenthesis

I'll draw it for you

[waxen spruce]

Ok thank you

[ionic vault]

so you use brackets, the left number means the starting point, the right number is ending point

(start,end)

[waxen spruce]

So how long would you write it if it is an infinite sequence

[arctic laurel]

For bii) why is it that they do -11x = bx - 12x?

in the second step

[ionic vault]

you would use constants such as (3n, 6n) to denote every integer of n

[waxen spruce]

So if that was an infinite sequence would this work
(1n,2n)U(2n,3n)

[noble sinew]

No

[grizzled sundial]

@arctic laurel because they've factorised it in terms of x

and they want to figure out what b is, so they looked at which terms multiply to give a final term of x

and its -12x and bx

[noble sinew]

$\bigcup_{n \in \bN} (n,1+n)$

[ocean seal]

ScapeProf

[grizzled sundial]

so if you add -12x and bx it must be equal to -11x

so b is equal to 1

[noble sinew]

Is how to write a function is continious at (1,2), (2,3),…

[waxen spruce]

Ohhhh

[alpine sable]

,help

[ocean seal]

A brief description and guide on how to use me was sent to your DMs!
Please use ,list to see a list of all my commands, and ,help cmd to get detailed help on a command!

[arctic laurel]

but wouldnt bx be bx^2?

[waxen spruce]

Thanks @noble sinew and @ionic vault 🙏 Really saved me for my calculus quiz today

[arctic laurel]

when you expand it?

[waxen spruce]

Hopefully I do good

[ionic vault]

Good luck ! glad we could help

[waxen spruce]

Thank you 🙏

[alpine sable]

The order is 1, right?

[crisp grove]

it's not a differential eq in this form

[grizzled sundial]

you multiple 1 and bx

I think this question's impossible

If you solve this ur big brain

[arctic laurel]

yeah i realized thx

[alpine sable]

but if u integrate ydx then it becomes a differential equation

[crisp grove]

say

[alpine sable]

dx/dy + xy = x^3

[crisp grove]

you have $\frac{d^2y}{dx^2} = y$

[ocean seal]

Ryuzaki

[crisp grove]

it has degree 2

now you do is integrate both side and you get $\frac{dy}{dx} = \int y dx$

[ocean seal]

Ryuzaki

[crisp grove]

this is not a pure diff eq because there is one integration in term of the unknown is involved

need to convert it into a form s.t. there's no integration term,

do the same for your problem

@alpine sable also you sure that's dx/dy and not dy/dx?

[alpine sable]

yesss

[alpine sable]

@crisp grove see

[crisp grove]

yeah I can see

u need to differentiate wrt y. IDK how much calculus you were taught so

[alpine sable]

i was an expert in calculus but i havent been in touch with maths for 6 months lol

[proven blaze]

guys, please help me it's all about long division method or also you can use synthetic division method

any ideas?

[alpine sable]

but @crisp grove we have this $\frac{d^2y}{dx^2} = y$

[ocean seal]

Karma2023

[crisp grove]

@alpine sableu need to differentiate wrt x, I hope you can calculate $\frac{d}{dx}\frac{dx}{dy}$

[ocean seal]

Ryuzaki

[crisp grove]

that was an example I picked

[alpine sable]

and when we integrate both sides we get $\int\frac{d^2y}{dx}=\int{ydx}$

[ocean seal]

Karma2023

[crisp grove]

yeah but that's not a differential equation anymore

it involves derivatives and integration, a differential eq must contain only derivative and dependent and independent terms

your eqtn is not a diff eq just yet

use a suitable derivative to convert it into one

[alpine sable]

@crisp grove but when we integrate ydx we get $\intydx = xy+c$

[ocean seal]

Karma2023
Compile Error! Click the reaction for more information.
(You may edit your message to recompile.)

[crisp grove]

NO no you don't get $\int ydx = xy$

[ocean seal]

Ryuzaki

[crisp grove]

y is a function of x

u said you were an expert? huh

[alpine sable]

i forgot a lot of things n now im revising

[dim flax]

hi stupid question but what happens if like when im transposing and the variable is negative like:
2 - x = 0

• x = -2

is this still right?

[toxic zephyr]

You can just multiply both sides by -1 to turn it back to positive

So yes it's still correct

[dim flax]

but do u know when should i do that?

like only when the answer isnt acceptable like earlier

[toxic zephyr]

The answer for x will be the same

It doesn't affect the variable of x

[dim flax]

mmhmm okok

[toxic zephyr]

Just how you write it out

[dim flax]

ok thanks

[vernal dragon]

do they want me to accept that x is equal to X(s)?

[lusty garnet]

Guys

How do i do QC

[lean quarry]

Hi

[alpine sable]

Question C you mean?

You learned the rule that when 2 different angles subtend the same arc in a circle, they're the same in degrees.

Right?

[calm solar]

Whats wrong?

Since the exponent is negative, it goes across as a rational number. hehe It's overlooked. Sory :p (problem solved)

[alpine sable]

Guys please help me please I have an exam in a month

I get long division

But how does it work with polynomials?

How does polynomial division work?

x^3 - 5x^2 + 8x - 4 divided by x-2

Why do you have to divide both the first terms first?

Why do you divide x^3 by x instead of x - 2, and why do you multiply the result of that by x - 2?

Instead of just the first term?

[lusty garnet]

ok but what about g

[alpine sable]

Since the red line is a straight line

And knowing that all angles in any triangle add up to 180 degrees, you can do g = 180 - ( f + this angle).

[uncut lodge]

Hi guys I wanted ask

How do i solve this

[green wadi]

No, but i got the solution, thanks 🙏🏻

[white swallow]

Fellas, what is ch?

the e seems to be euler's number but what is "ch"x

[valid pier]

pls help

[random ocean]

That is Sinhx

[white swallow]

Well thanks, what a weird way to type it

[valid pier]

But 62 is not the option

[random ocean]

I’m not sure about the context, but I’m going only off the exponential term part 😅

[valid pier]

Pls help

[strong furnace]

it is convention to write sinh as sh and cosh as ch in some places

[white swallow]

Ah so its cosh, got it

[alpine sable]

Can someone help me with this

[sleek elbow]

3,45 * 10^4 I think

[alpine sable]

Okay thanks @sleek elbow

[ancient shale]

yup

[dusty oxide]

is Sin^2(x) =0.5 * -cos(2x) + 0.5 ?

[alpine sable]

h

hi

if 14 workers can build a wall in 45 hours , how many workers will be needed to do the same work in 35 hours .

how do i solve it

[vagrant rover]

How come this is wrong?

Y intercept is 0,2

And slope is 0.75/-3

Right?

[alpine sable]

if 14 workers can build a wall in 45 hours , how many workers will be needed to do the same work in 35 hours .

how shall i solve

;-;

[ancient shale]

first try to calculate how long one worker would need

[elder glacier]

sorry if channel is in occupation but i cant see why my first part is wrong

[glass lichen]

Asks for it evaluated st s

At a*

[pliant acorn]

Can u guy help me?

[sour cloud]

Umm, if y = 2^x, how could I express 2^x+1 in terms of y?
I was thinking y^1 or y, but I wanted to be sure

[elder glacier]

@glass lichen im still a bit lost ngl

[swift flame]

annie earns $228 000 in the first year of her job and expects a raise of 2% every year thereafter. what is her expected annual income on her tenth year?
our topic is geometric sequence

[swift flame]

a= 228000usd; r=2percent; n=10
someone sent this to me but idk what to do w it

<@&286206848099549185>

[sour cloud]

i'm kinda struggling

[alpine sable]

Head to other channels.

[elder glacier]

@sour cloud is it not just 2^(y/2)+1

@swift flame use the compound interest formula

[sour cloud]

Umm, may I ask why it would be this?

[elder glacier]

ohhhh y= 2^x sorry read it y=2x

[swift flame]

okay thank you,, what should i put on P

[elder glacier]

initial balance

[swift flame]

228000=___ (1+2/10)^nt

what is nt tho

[swift flame]

@elder glacier

[elder glacier]

@sour cloud you ln both sides so you get ln(y)=ln(2^x) = ln(y)=ln(2)*x , thus x = ln(y)/ln(2) <=> ln(y/2)

then you sub into 2^x+1 so u get 2^(ln(2/y))+1

[sour cloud]

Umm, nevermind, I got the answer on #help-8

thanks anyways

[alpine sable]

please help

i still don't understand

[glass lichen]

It wants f'(a)

[alpine sable]

what should i do

[elder glacier]

@glass lichen so what is a in this case

[alpine sable]

oi

i tried it

but 45 is not divisible with any number

and i figured its a inverse Proportion

so i have to multiply the numbers

[ancient shale]

so you only use real numbers?

[alpine sable]

Anyone know some Geometry?

[glass lichen]

It's a value

[alpine sable]

10

[sour cloud]

how can I express 81^(x+1) as 3^y

[undone dock]

Can you express 81 as a power of 3?

[stone minnow]

Do you mean that you want to convert the L.H.S. to the form of 3^y?

[alpine sable]

3^(4x+4)

y = 4x + 4

[sour cloud]

Nevermind, I got an answer on #help-8

thanks anyways

[subtle fox]

Hi! I have a question

If a problem doesn't state what measure of time it uses, what can I use in place of it? like if it doesn't say hour or minute, what can I use to refer to it?

[wary stream]

Can you post the question?

[subtle fox]

okie dokie!!

I've already solved it, I just have to answer the essay portion

[wary stream]

Normally, the default unit for math/science is seconds, unless stated otherwise

[subtle fox]

okie dokie!! Thanks so much ^^

[elder glacier]

can someone please explain my third answer is wrong, im legit clueless

[wary stream]

The solution already provide y =

You have to set your equation equal to y

[elder glacier]

ohhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

lol

xd

@wary stream ur a prodigy

[alpine sable]

Guys who can help me a little bit with integrals?

[fierce frigate]

can anyone help?

ABC is an isosceles triangle, if ∠A = ∠B , AB = 0.5 m and perimeter of triangle ABC
is 18 dm.
a. Find the length of BC.
b. Find the area of ∆ ABC (in dm2)

[alpine sable]

is anyone here good at binomial expansions?

[safe roost]

if someone could explain how they get rid of the absolute value in the numerator when simplifying, i'd be very thankful

[glass lichen]

They get |x^2-4|^2

[safe roost]

right yeah

[glass lichen]

Which is (x^2-4)^2 by definition

[safe roost]

... find a good teacher kids, because i sure haven't

[glass lichen]

|x|=sqrt(x^2)

[safe roost]

yeah and if you square that, gotcha

honestly, so simple... i get super formal instruction about shit i will never use, but shit like this they just brush over

thanks so much Mosh

[marble sparrow]

Hi can someone help me with this question:
Draw V PQR with PQ = 5 cm, QR = 4 cm and Q = 110°

(ik this is easy but math is my weakpoint :/)

[fierce frigate]

once u guys areee done caan someone help??

One of the diagonals of a rectangle is 26 cm long. If the difference between its
length and width is 14 cm, then find the area of the rectangle.

[mossy flax]

its a prime number yea

[lament night]

hello

can i get help?

[stable mango]

Sure

Whats matter?

[lament night]

umm this trigonometry bearing question

here

umm hello?

[stable mango]

Hmm

exits chat

Btw, sorry

[marble sparrow]

can someone help

[stable mango]

I will be able once i get home

It will be in like 20mins, ask someone else till then

[marble sparrow]

Yeah but theres more to it

bruh

no need to be toxic

i dont need ur help anyway

[lament night]

im still trying

i got delta's angle using cosine rule im figuring out how to find the outer angle

how do i get it

no

nvm got it

thanks for ur time

[oak dagger]

dy/dx of y = tan^-1x

[ancient saddle]

Hello. Do you know implicit differentiation?

you can start from tan(y) = x, differentiate on both sides with respect to x and solve for dy/dx

[somber folio]

Hello if anyone could help I'd massively appreciate it. I'm currently stuck on a question asking me to find the coordinates of 2 points on the curve y=x²/2-x where the gradient of the curve is equal to 0. So far I used quotient rule to find out dy/dx but I'm unsure what to do next after I equate it to 0. I might just be overthinking what to do next but idk.

[quaint trout]

Do you mean $$y = \frac{x^2}{2-x}?$$

[ocean seal]

Lunasong the Supergay

[somber folio]

yep

[quaint trout]

Then you should use parentheses like x^2/(2-x)

Can you show what you got for the derivative?

[somber folio]

Ah mb

Yeah sure

[quaint trout]

Hint: a fraction is equal to 0 if the numerator is equal to 0

[somber folio]

x (4-x)/(2-x)²

[quaint trout]

(and the denominator is not or it would be undefined)

[somber folio]

I think one point is 0,0

but the next one I solved the 4-x part and got -8

for y

[quaint trout]

What was the x value you used?

[somber folio]

4

[quaint trout]

Looks right

[somber folio]

Oh..

⚰️

[burnt summit]

hey i need help with a question

[somber folio]

Lmao thanks for the help I did need the clarification 🙏

Sorry if I wasted your time

[quaint trout]

@somber folio wait

[burnt summit]

sorry if its a bit blurry

calculate AD

[somber folio]

I'm here

[quaint trout]

I think your derivative might be wrong

,w d/dx x^2/(2-x)

[ocean seal]

Results provided by WolframAlpha

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

Requested by Lunasong#7197

[quaint trout]

Oh nvm

I fucked up

100%

[somber folio]

Lmao all g

[burnt summit]

can someone help?

[alpine sable]

Pythagorous Theorem.

Base ² + perpendicular ² = Hypotenese²

[burnt summit]

ooh ok

[hard haven]

does anyone know how i got 4.5

[raw shard]

calculate the length of ca then da

[burnt summit]

so would i do 10m squared + 5m squared?

[raw shard]

how did you get 5?

[burnt summit]

wait

i halved 10

[raw shard]

no

that’s not how you do it

[alpine sable]

Where's 5 coming from?

[burnt summit]

i thought i had to half

[hard haven]

yea i got x = 1 for one of them

but the other one idk how to do solve it

[raw shard]

(ab)^2 + (ac)^2 = (cb)^2, aka 14^2 + (ac)^2 = 19^2

[split oriole]

4x-7=11

4x-7=-11

Solve these two

[hard haven]

i got -4.5

why is it 4.5

tho

why is it positive?

[alpine sable]

No.

AC will be 19² - 14²

[split oriole]

11+7=18

Not -18

[burnt summit]

oh

then

165 square root

[hard haven]

i am confused now lol

[alpine sable]

Yes, again follow the same rule in triangle ADC

[raw shard]

lol what

the base is not half the hypotenuse

[burnt summit]

ok so after i get the square root i would do minus 10m squared?

[hard haven]

ill just assume it's -4.5

but it's positive

because absolute value of -4.5

is 4.5

hence why x = 1, 4.5

[split oriole]

4x-7=11

4x=11+7

4x=18

X=18/4

X=4.5

[alpine sable]

No, √base ² + perpendicular ²

I,e,.

√10² + 165

[burnt summit]

ohhh ok

[alpine sable]

Which gives us the hypotenese

[raw shard]

well it’s not

[alpine sable]

So, it's coming √265, which is actually 5√11 units @burnt summit

[burnt summit]

and thats AD?

[alpine sable]

Yeah

[burnt summit]

ok tysm u made it clear

[alpine sable]

You're welcome 😊

[hard haven]

can someone PLEASE explain how i do this

step by step

only concept i dont understand in this unit 😭

[raw shard]

@alpine sable your simplification was wrong

if it was 275 it would have been correct

[alpine sable]

Ahh ok

It's

Actually √265 @burnt summit

Sorry, got a bit careless xD

[raven rover]

Given that |x - 6| > 11, this means that x - 6 > 11 OR x - 6 < -11

[alpine sable]

Thanks 😊

[raw shard]

no problem

[hard haven]

ok so i got -5, 17

How do I use these numbers

-5, 17

to get (-infinity, -5) U (17, infinity)

and U means union

but what exactly does that mean/show / when do i use it?

[burnt summit]

@alpine sable i got 20.8 as the answer but i think i messed up

i did 17 squared - 12 squared

which is 145

and i did square root 145 + 17 sqaured

ye

bc

[alpine sable]

Bro draw a perpendicular from C

What are you supposed to find though?

[burnt summit]

length of BC

[alpine sable]

I see

[burnt summit]

OHH

its 15 squared plus 145

[alpine sable]

Apply Pythagorous again @burnt summit

[burnt summit]

not 17 squared

[alpine sable]

Lemme check

[burnt summit]

how

ye i did that

[sick ledge]

how do you derive the line below for m=1 from the question?

what?

[sick ledge]

there is no taken or sth
this channel is for everyone

[hard haven]

LOL chill haha

[sick ledge]

right back at you

[alpine sable]

@burnt summit

[sick ledge]

this channel is for the public

[burnt summit]

wait

why did u not do 289 - 12 squared

and u did - 225

[alpine sable]

Huh?

[sick ledge]

not like your question has an ongoing discussion either

and try to act more civilized

than saying "piss off" to someone else

[alpine sable]

I'm taking triangle MDC

[sick ledge]

you were talking about yourself

then its not your business

i dont care simply

[alpine sable]

Stop quarreling bruh, I would suggest to go to a different channel, pls @sick ledge

Stop brother @alpine sable

[burnt summit]

what does the last line say

[sick ledge]

its not like im quarreling
someone is just bugging on me

[burnt summit]

this actually confuses me

[sick ledge]

and i thought juicynice finished his convo

[alpine sable]

It's fine. As the bugging stuff are over, you are free to go now. I guess

[sick ledge]

im free to go whenever i want,but thx

[alpine sable]

you're welcome, bye.

[burnt summit]

ok then at the alst line

how u get 4

[alpine sable]

X= md @burnt summit

[burnt summit]

ohh ok

i think i get it

[alpine sable]

Fine.

[crisp grove]

[burnt summit]

i have 1 last question ill do on my own and see if i can get it right

[alpine sable]

💀

:/

[raw shard]

@alpine sable @crisp grove clones

[crisp grove]

[alpine sable]

😳

[raw shard]

both of you even have capitalization lol

[crisp grove]

diff reles & colors tho

[alpine sable]

Also, diff pfps

any ideas to help me solve this question:
For which n>1 is [73]_n = [13]_n
i am not sure where to really begin

[burnt summit]

i hate this i acc dont get it

im not finished yet but idk what to do next

[alpine sable]

Smh

[burnt summit]

why does it change everytime

fgs

idek anymore

[crisp grove]

there can only be 2 diagonals

[alpine sable]

Where are diagonals coming from?

[crisp grove]

the major diagonal (top left to bot right) is easy and can be done using a^2+b^2=c^2

[alpine sable]

That's simple geo

[crisp grove]

for the 2nd one, try to think what sould be the coordinate of the top right corner if the bot left is at (0,0)

[alpine sable]

I don't think he understands coordinate

[burnt summit]

i just need something simple to explain theres too many things

[crisp grove]

by joining the 2 points he sure can find a right angled triangle

[burnt summit]

i just want the formula

is it 10 squared - 8 squared

[alpine sable]

Look, so as you have formed a rectangle, the length of the two sides(up and down) should be equal, ie 10 cm

Hence, the base of the triangle would be 8 cm

Now, apply Pythagorous

[sick ledge]

wow pretty sure nobody can actualy raise a question for 2 days according to someone
considering that this question is ongoing for 2 days
@alpine sable

[alpine sable]

Yes

[burnt summit]

which is 6

then what next

[sick ledge]

see who was being salty first.
also i didnt see any conversation ADMIST

[burnt summit]

please just help this is so confusing i just wanna finish it

[sick ledge]

and also you were only targeting at me

the other persons also did the same thing

[burnt summit]

but i dont get it

all this perpendicular stuff

ok whats a diagonal i just wanna get that first

im doing stuff i have no idea what im doing

ok

so do i need 2 answers

im finding 2 diagonals

[sick ledge]

is there a viable explanation for this theorem?

the only part i dont understand is the combination part
how combination forms coefficients

[burnt summit]

ok 10 sqaured - 8 squared

what next

ye because idk what this stuff means

can u tell me what i need to do next

ok just tell me formula

ur confusing me more

by saying all this

;-;

[alpine sable]

Lmao

[burnt summit]

idk anymore

ok 10 squared - 8 squared

= 6

what next

[sick ledge]

to find diagonals,you have to know the sides of the rectangle which is denoted as x
to find x,you have to find the other side of the triangle which is 18-10

[burnt summit]

ye

i did that

[sick ledge]

then after you find that the other side is 8
you can apply the pyth theorem

which is the formula

i hope it is a good explanation

[burnt summit]

ye i did that

but what next

i just wanna know what to do next

[sick ledge]

then diagonals i think you mean the diagonals of the rectangle

which is the rectangle with sides x and 10

[burnt summit]

yes

is 6 length

10 squared - 6 squared

oh

huh

whats the anser

do i not do square root

idek why i gotta do square root

its all confusing

do i add square root

[sick ledge]

x is sqrt(10^2-8^2) which is 6
so to find y,just imagine x and y and 10 forms another triangle
then 10^2+6^2 = y^2

just understand it rather than trying to find the answer

[burnt summit]

2 square root 34

is anser

?

or 11.6

[sick ledge]

yeah

[burnt summit]

thats all?

[sick ledge]

in case the diagonals you mean is rectangle diagonal

yes

or if you mean diagonals of the whole shape,then you have found one side

[burnt summit]

i need the anser for the question

is 11.6 it

[sick ledge]

yes

[burnt summit]

oh ok

just when ik how to do it i got questions with finding area of triangles

can u help with this

just tell me the answer ill work on it later

and the steps

i just want to finish this is stressing me out

@alpine sable

i did the first question

idk hexagon

[sick ledge]

@burnt summit

hope this helps

[burnt summit]

tell me the formula

[sick ledge]

apply this formula to hexagon

basically you know the area of a triangle using two sides and the angle between them

so the hexagon is constituted by 6 equal triangles as you can see,
and the 3 sides of the triangle is equally 12 cm
so

1/2*12*12*sin(60)=62.35382907

[burnt summit]

hard when i never learnt what sin is

is 62 answer

[sick ledge]

yes

[burnt summit]

12 x 12 divided by 1/2

[frigid hatch]

that's not the area of the hexagon

[burnt summit]

pls just tell me the working out

[frigid hatch]

it's not complete

[burnt summit]

o

ok

ok

ok

pls tell me

the

working out

i will understand

if u show me the working out

ur not helping me by directing me

if u show me working out

i will understand

pls just tell me for the 2nd question

[frigid hatch]

lol

you should really try to understand the process

[burnt summit]

i will practice later

i really just wanna get it done now

i cant ask its due tmrw

we got it today

[celest flower]

damn

razor tight margin

whats da q?

[burnt summit]

ok so where do i start

?

[burnt summit]

this

2nd one

pls dont go explaining life

just tell me how to work it out

ok

ok

explain

pls

i beg

@alpine sable

ok

next?

[alpine sable]

would anyone be able to help me with some algebra a

[light hornet]

@alpine sable , read the rules first :)

Hey! I'm stuck on this problem. I have to create a linear application that meet this requirements:
S = <(1, 1)>
T = <(1, -3)>

• f(S) = S
• f(T) = T
• f(1,2) = (3,1)
  I've of course thought of f(x,y) -> (x, y), as it meets the first two requirements, but it doesn't with the last. Would love some help

[alpine sable]

what?

[light hornet]

#❓how-to-get-help message rule #1

Hey, I just asked my question, please let me get a response and then ask yours ^^

[alpine sable]

Oh, sure brother.

[alpine sable]

yes my question concerns a few different parts of algebra

[alpine sable]

u didnt let me get a response read rule 2

[light hornet]

You didn't ask a concrete question

[alpine sable]

yea because i need to talk through a few different things because it’s not a singular question i need help with

[light hornet]

I'm new here, but I feel like I'm following the rules. If it is my mistake, sorry in advance, but I feel like I asked first.

I started typing first, although I know that doesn't make a difference, if you had asked an exact question I'd have waited

[latent vapor]

I would probably try defining a transformation with two of its eigenvectors being S and T. You'll have infinitely many possibilities of matricies with such eigenvectors and thus the condition, f(1,2)=<3,1>, should give you one and only one matrix (if I'm not mistaken).

[light hornet]

Thanks for pointing me in the right direction!

[remote jay]

How do i get the numbers for Pb' (A) and Pb' (A')

A' = a is not happening

same with b'

[silver echo]

i need help

i have no idea how to do these

[remote jay]

@silver echo may check if there is a question already in here 😐

[silver echo]

huh

[raw shard]

@hybrid plume i can help

-2+b = 5

that should be what b is

@abstract junco channel is occupied, go to a different channel and ping me, i can probably help

[hybrid plume]

Can you explain the reasoning behind that?

@raw shard

[hushed pasture]

look we have a sum equal to another sum

so basically they have the same number of terms

right?

[hybrid plume]

Yeah

[thin berry]

can someone try to hint me this

[hushed pasture]

so 60 - 7 + 1 = a - (-2) + 1

@hybrid plume this is how you compute the number of terms n-p + 1

you know it right?

[thin berry]

i made the first and the second equations equal each other but then i didn't know what to do

[hybrid plume]

When the start point isn’t equal to 1 is what you’re talking about right?

That’s the method you’ve just used?

[hushed pasture]

you will study in sequence course why we add 1 but in this case we can just do 60 - 7 = a - (-2)

clear?

[thin berry]

ok i made x as 3 for instance but then struggled again

lol

[hybrid plume]

Or just say if that’s what you’re referring to?

[hushed pasture]

$\frac{x^2-3}{x+2} = \frac{x^2-4+1}{x+2} = \frac{(x+2)(x-2)+1}{x+2} = x-2+\frac{1}{x+2}$

[raw shard]

@hybrid plume the difference between the end and beginning of the first sum will be equal to the difference between the end and beginning of the second sum, so 60-7 = a-(-2)

[ocean seal]

Salah

[raw shard]

also the exponents on the three are very similar

[hybrid plume]

Right I get that part

[raw shard]

sorry i’m not too good at explaining stuff

[sharp sable]

when the square of a number is increased by 1 the result is four times the number. find the number

[thin berry]

from where did we get the 4 ?

[sharp sable]

what does this mean

[hybrid plume]

x^2+1=4x move the 4x to the left and factor it

[raw shard]

@sharp sable channel is occupied, also the phrasing is confusing

[hushed pasture]

$x^2 -3 = x^2 - 4 + 1$

[ocean seal]

Salah

[raw shard]

oh never mind lol

[thin berry]

oh my bad

[hybrid plume]

Quantum can u continue explaining from that point?

[thin berry]

sorry lol

[sharp sable]

its confusing yeah i will mover to anther one

[raw shard]

no it’s not confusing

[thin berry]

tysm

[raw shard]

i just didn’t understand at first

[hybrid plume]

So that equation gets you the a value

[raw shard]

just factor it or use the quadratic formula

x^2-4x+1 = 0

[hybrid plume]

Once you get the a value, do you just take the sum on the right hand side of the equation and solve for b?

[raw shard]

can you post the question again @hybrid plume

so i said 60-7 = a-(-2), right?

[hybrid plume]

Yeah

[raw shard]

basically you can just substitute in the first value of k and the first value of b

so 7-2 = -2+b

or i guess to make it easier, 7-2 = b-2

or i guess obvious lol

@hybrid plume did that help at all?

just look at the exponent of the 3

[thin berry]

i looked at it again and assumed as (x-?)(x-?) LOL 💀

[hybrid plume]

Yeah. So getting a was as unpleasant as 60-7=a-(-2)?

a=51

[raw shard]

yes

[hybrid plume]

None of that +1 stuff?

[thin berry]

didn't realize that its a normal equation

[raw shard]

idk what that means but you should be correct

[hushed pasture]

@thin berry x^2 - 4 = x^2 - 2^2

it's just an identity

[thin berry]

yeah yeah

[raw shard]

something you can actually factor i guess

[thin berry]

thats a result of 7 hours studying i cant remember my name

anyways thanks

[raw nexus]

can anyone help me with this differentaition question?

answer is in Amps per Second (A/s)

[raw shard]

@raw nexus do you need help in differentiating it or converting the measurements?

i can only help with the first thing

[raw nexus]

help in differenation

[raw shard]

ok

you know the chain rule?

[raw nexus]

yeah i did learn it but i find it very difficult to understand

[raw shard]

ok i can try to explain it

so we have dy/dx = (dy/du)*(du/dx)

u is the inside function, y is the outside

we define u in terms of x, and y in terms of u

remember we can take out the 1.7 since it’s a constant

wait i might be stupid but i don’t even see a variable in that equation

so idk how to do this

everything looks constant

[last sinew]

Ft is prolly the variable xd

[raw shard]

no lol

[last sinew]

O then wouldnt it just be 0?

😂

WIAT

I SEE IT

[raw nexus]

i have an example

[last sinew]

F is frequency

T is time

That's 2 variables isnt it

💀

[raw nexus]

I = 2.4sin(2πft) = -279.6A/s

[raw shard]

if that’s true they made it insanely hard to understand

[raw nexus]

thats an example i was given

[raw shard]

so the person who made this question made it loom terrible

i guess f is a function of t

so it would be d/dt

@raw nexus do you know if f is frequency and t is time?

that seems right

[raw nexus]

yes f is freq and t is time

[raw shard]

well this is going to take a minute

let me get the equation set up

gotta write this down

so we have 1.7sin(2pi*f*t)

[raw nexus]

yes

[raw shard]

i’m going to assume that f is a function of t

as in f varies with t

so this will be d/dt

[raw nexus]

okay

[raw shard]

ok i need a few minutes to get the answer

so i can guide you through

[raw nexus]

okay, no worries take your time, im very gratefull that your helping me

[raw shard]

yeah i’ve never done a derivative like this but i can try

never mind i know how to do this

there is no imaginary term @alpine sable

unless you’re talking to someone else then oops

[alpine sable]

is this channel free

[raw shard]

@raw nexus ok i’m done

@alpine sable a few chain rules or something

[hybrid plume]

@raw shard can you check channel 3? Quick question

[raw shard]

just a minute

[hybrid plume]

Np

[raw shard]

@alpine sable @raw nexus dI/dt = (cos(2pi*f*t))*2pi*((df/dt)*t+f)

long answer lol

[raw nexus]

okay

[raw shard]

i typed something wrote so i edited it

saying that so you don’t write down the wrong derivative

[raw nexus]

okay im following

[raw shard]

i have to do something but i’ll be back in a minute

@raw nexus ok i’m back i can explain it now

sorry for taking so long

[raw nexus]

okay thats alright, i dont mind waiting

[raw shard]

the first thing i used was the chain rule, dy/dx = (dy/dx)*(du/dx), changed it to dI/dt = (dI/du)*(du/dt)

ugh formatting

[raw nexus]

okay

[raw shard]

can you post the question again, i’m going somewhere so i can’t look at my work

[raw shard]

channel is occupied

[frail flame]

can someone help please

ohh ok

[raw shard]

go to a different channel please

[frail flame]

mb

[raw nexus]

okay it makes sense so far

[raw shard]

can you post the question again

@raw nexus

[raw nexus]

https://cdn.discordapp.com/attachments/490557019623915520/892835359338160159/unknown.png

[raw shard]

ok

so first i substituted u as 2pi*f*t

and made I = sin(u)

so dI/du = cos(u)

[raw nexus]

okay

[raw shard]

now for du/dt

so d/dt (2pi*f*t)

change it to 2pi*(d/dt (f*t))

sorry i know i suck at explaining

[raw nexus]

thats okay

[raw shard]

so f is a function of t, so df/dt = (df/du)*(du/dt), which can be changed to du/dt = (du/df)*(df/dt)

things as being multiplied so we use the product rule

[raw nexus]

ayy youve changed roles, congrats 🙂

[raw shard]

d/dt (ft) = (d/dt f)*t+f*(d/dt t)

oh cool lol

thanks

d/dt t = 1

d/dt (ft) = (d/dt f)*t+f

[raw nexus]

okay

[raw shard]

now i’ll use du/dt = (du/df)*(df/dt)

u = f

so (d/dt f) = (d/df f)*(df/dt)

basically just saying that df/dt = df/dt

so d/dt (ft) = (d/dt f)*t+f = (df/dt)*t+f

now we multiply this by 2pi since i took that out before

[frail flame]

are u a teacher irl?

[raw shard]

2pi*(d/dt (f*t)) = 2pi*(df/dt)*t+f

no

so now we have du/dt and dI/du

[raw nexus]

okay

[raw shard]

dI/du = cos(u) = cos(2pi*f*t), du/dt = 2pi*(df/dt)*t+f

so multiply dI/du and du/dt and there’s your answer

[raw nexus]

what?

could you write out the formula with the values in? so i understand better

channel occupied

pls move to another channel

[raw shard]

@alpine sable the channel is occupied

please go to a different channel

it’s literally in the rules if you would have read them

@raw nexus sorry but what do you exactly mean by that question?

just because someone isn’t talking every second doesn’t mean it’s not occupied

[sudden sphinx]

Where is the origo? How do I do this

[raw shard]

oh my gosh

please go to a different channel everyone except for @raw nexus

[hybrid plume]

@sudden sphinx bro just post it in another channel someone will get to you

[sudden sphinx]

ah ok

thx

sorry, (0,09 aka the origin

(0,0)

ok

[raw nexus]

so my answer is dl/dt * du/dt so this is cos(2pi600.005) = -0.3090 * 2pi*(df/dt)*0.005+60 = but what is (df/dt)?

[raw shard]

sorry we drifted off from your question

do you want to solve for df/dt?

also dI/dt = (cos(2pi*f*t))*2pi*((df/dt)*t+f)

just wanted to send that for me i guess

oh i get what you mean

hmm

[raw nexus]

Channel occupied pls move to another channel

[raw shard]

ugh

this is getting annoying

i might have done that wrong honestly since that’s there

if i did sorry lol

because idk how to do it any other way

[raw nexus]

like for the example I = 2.4sin(2πft) = -279.6A/s

im confused too

so for the question 1.7sin(2pift)

would i split the equation in 2 so for u and v

[raw shard]

@raw nexus what do you mean?

[raw nexus]

im just confused

[raw shard]

same

[austere star]

Can anyone help

[raw shard]

go to a different channel please, this one is occupied

[raw nexus]

okay would you know how to get the ans -279.6 from I = 2.4sin(2πft) where same again t=0.005 and f =60?

because then maybe this couls help me to get the answer from the original question

[raw shard]

uh

probably not honestly

wait a second

maybe?

[raw nexus]

yeah pls give it a go if you can

[raw shard]

so dI/dt = (cos(2pi*f*t))*2pi*((df/dt)*t+f), with f = 60 and t = 0.005

well idk actually, because then the person who actually did the derivative would have gotten the answer without having to do this

[raw nexus]

how do you know that? why do you think that

[raw shard]

if we did it right, there probably wouldn’t have been a df/dt left in there

maybe it was with respect to both variables?

have you gotten to derivatives like that by any chance?

wait idk if that even exists honestly

lol

[raw nexus]

hang on give me a sec

u understand this?

[raw nexus]

sorry to bother you

[raw shard]

i don’t think so

i only know derivatives anyways

[raw nexus]

okay

thankyou for your help

[raw shard]

no problem, at least i tried lol

[raw nexus]

im sorry that it seemed that you wasted your time,but i was happy to learn from you 🙂

[raw shard]

nah i’m fine, math is fun for me anyways

[sturdy grail]

is this channel free?

[raw shard]

yes

[sturdy grail]

thanks

so what is our d in this problem

what's the intervall

if it was even I could have chosen one of them in the picewise function and multiply it with 2

but how do I do it with this one? I was thinking

we should use

0<t<1 since we can calculate the area beneath the graph using integrals

while we can't do that with the intervall -1 <t < 0

[charred flint]

not sure what you mean

you want to integrate over a period so d=-1, T=2 will do

[sturdy grail]

why is our d= -1

[charred flint]

it just looks like a simple starting point

[sturdy grail]

you just chose a random number?