help-0

[vale wigeon]

answer the leading question i asked you

.

[reef geyser]

opposite and adjacent

[vale wigeon]

that's right.

what is the opposite side in our case?

[reef geyser]

x?

[vale wigeon]

no

[fresh bolt]

its 16

[vale wigeon]

x is the hypotenuse

@fresh bolt was not asking you and would appreciate you not interrupting

[reef geyser]

ohhh

so it’s the unlabelled side ?

[vale wigeon]

no

the unlabeled side is the adjacent

16 is the opposite

[reef geyser]

OHH

[vale wigeon]

@haughty holly i see you typing. this channel is busy, please move.

[haughty holly]

... ok

[vale wigeon]

@reef geyser so with this in mind, would you be able to find the adjacent side?

i.e. the unlabeled one at the bottom

[reef geyser]

yes

[vale wigeon]

okay, do it and tell me what you get

[reef geyser]

so that side is 12 ??

[vale wigeon]

yes that side is 12

now you have both legs

do you know how to find the hypotenuse?

[reef geyser]

so then i just use the Pythagorus theorem right

[vale wigeon]

yes, the Pythagorean theorem is exactly what i was hinting at

[reef geyser]

so the final is 20 ???

THANK U SMMM

[vale wigeon]

yes

can i see part b again?

[reef geyser]

sure do i resend it?

[vale wigeon]

yes, as i just asked you

i'm having a weird feeling about it

[vale wigeon]

it sounds like there isn't enough info to find y

yeah, no, there isn't. this question is messed up

[tulip pier]

You have enough info

Tan of x gives you what you need

After that it is just applying pythagoras theorems to figure out y

[cinder falcon]

free channel?

[vale wigeon]

@tulip pier please enlighten me as to how you will use the value of tan(x) when you know none of the side lengths of ABC

[tulip pier]

do you get what i am saying?

[tulip pier]

ok so what is the definition of tanx?

[vale wigeon]

referring to the diagram, tan(x) = CB/AB

[tulip pier]

yeah so since tanx = 10/24

CB = 10 amd AB=24

[vale wigeon]

what's your point?

[tulip pier]

then you get 60-24 to get BC

[autumn forge]

how to do 73? i thoguht the formula for difference quotient was (f(x+h) -f(x))/h not (f(2+h) - f(x))/h

[vale wigeon]

@autumn forge channel busy please move

[autumn forge]

alright my bad

[vale wigeon]

@tulip pier where are you getting it from that AB = 24?

[tulip pier]

tanx = 10/24 right?

[vale wigeon]

nobody said that CB had to be 10 and AB had to be 24

a/b = c/d does not imply that a=c and b=d

why couldn't we have CB=5 and AB=12 instead?

or maybe even CB = 2.5 and AB = 6?

or any other combination that gives the same ratio?

[tulip pier]

dude ok so you have tanx=10/24 and tanx=CB/AB

[vale wigeon]

CB/AB = 10/24 does not imply CB=10

if CB were 5 and AB were 12 you would also have CB/AB = 10/24

you cannot say that CB = 10

and you cannot say that AB = 24

[tulip pier]

you can cause that is what the question gives you

because the fraction within a trig function can be manipulated to get triangles of different sizes

[vale wigeon]

no, the question gives you tan(x) = 10/24 and nothing else

[tulip pier]

and the question gives us that specific triangle size with those number

[vale wigeon]

10/24 and 5/12 are the same fraction

the way it's written cannot and should not be relied upon like you're trying to insist

[tulip pier]

draw me a 10/24 and a 5/12

[vale wigeon]

if they wanted to give you either CB or AB directly then they should've given you CB or AB diesctly

[tulip pier]

are they the same triangle?

[vale wigeon]

they aren't, so what? the angle in them would still be the same

and the angle is all we're given

[tulip pier]

the angle has also given us the ratio

which is 10/24

[vale wigeon]

yes, the ratio

[tulip pier]

so that is the lengths we use

[vale wigeon]

all we know is the ratio

no

nothing in the question says that AB = 24

[tulip pier]

the tan(x) = 10/24 says it is

[vale wigeon]

no it doesn't

by that logic look at part a of the same blasted question

we're told tan(θ) = 4/3 but the opposite side is not 4 but 16

according to you writing tan(θ) as 4/3 would somehow be wrong and it shouldve been 16/12 instead

you're insistent on completely ignoring the fact that the fractions 10/24 and 5/12 are ONE AND THE BLOODY SAME

[tulip pier]

bruhhhhhhh

[vale wigeon]

they arent different as you keep trying to claim they are.

AB isn't 24. we CANNOT conclude that AB is 24.

[tulip pier]

if your talking about a triangle ratio it is

[vale wigeon]

no it fucking isn't

[tulip pier]

WE can conclude because that is what the question tells us

[vale wigeon]

you don't suddenly get to treat two equivalent fractions as different just because we're talking about triangles

[tulip pier]

well ok how are you gonna do the question then?

[vale wigeon]

that's not how things work in math

i've already made myself clear: there is not enough info to do the question

[tulip pier]

IT IS A TRIGNOMETRIC FUNCTION

[vale wigeon]

SO WHAT IF IT'S A TRIGONOMETRIC FUNCTION

THAT DOESN'T MAKE ANY BLASTED DIFFERENCE

if AB were 12 and BC were 5 we would have the EXACT SAME value for tan(x)

the EXACT

[tulip pier]

SO IT THE THE RATIO OF THE TRIANGLE THE MAKES IT UP

[vale wigeon]

FUCKING

SAME

JUST BECAUSE IT'S WRITTEN AS 10/24 AND NOT 5/12

MEANS

JACK

FUCKING

SHIT

[warped phoenix]

um

i dont mean to interrupt

[vale wigeon]

IT DOESN'T MEAN ANYTHING, AND YOU CANNOT DERIVE ANYTHING FROM IT

[tulip pier]

bruhh this guy

[vale wigeon]

i beg your pardon?

[warped phoenix]

but i would like some assistance in channel q1 when u guys are done, take ur time ofc, ty

[vale wigeon]

"this guy"?

who was that referring to

[fresh bolt]

guy hjahah

[cinder falcon]

lol

[fresh bolt]

[tulip pier]

the question gives tan = 10/24 and he says the lengths could be 5 and 12

[vale wigeon]

i'm not a he

[fresh bolt]

he

[warped phoenix]

this guy is pretty common

i dont think he meant it

with

gender

weighed to it

[vale wigeon]

duck just called me he

@tulip pier i'm a she, just so you know.

[warped phoenix]

well even if you're talking with a girl i dont usually hear "this gal"

[tulip pier]

well idk what you are from your profile pic through discord lol

[cinder falcon]

their status

[tulip pier]

i am sorry this person

[vale wigeon]

my about me literally has my pronouns in it

[warped phoenix]

idk just my 2 cents

maybe hes not reading your about me

[vale wigeon]

you have no excuse

[fresh bolt]

girl + girl = guy

[tulip pier]

well tanx = 10/24 means that opposite is 10 and adjacent is 24 you can ask someone

[warped phoenix]

(can someone please help me in q1 😄 )

[fresh bolt]

math

[vale wigeon]

no it doesn't

no it bloody doesn't, duck

by your logic

in part 10a

tan(θ) = 4/3

would mean the opposite is 4 and the adjacent is 3

[fresh bolt]

no the channel is taken :D

[vale wigeon]

which would directly contradict what's actually stated in the question

[warped phoenix]

q2 then 😦

[vale wigeon]

this is different

here you KNOW the sides

[warped phoenix]

its quick anyway

[vale wigeon]

and get tan(x) from it

you're trying to go the other way

which cannot be done

[tulip pier]

omg

they label that in

[vale wigeon]

AND you're misgendering me, which is unrelated but something i take issue with nonetheless.

[tulip pier]

well i am sorry i did not click on a profile of a user i have never talked too until today m'lady

[vale wigeon]

one would think Ann would strike you as a feminine name

but whatever

[tulip pier]

ok so have you learnt about sin(pi/3) and stuff like that?

[vale wigeon]

yes obviously

who do you take me for, some kind of middle-schooler?

[fresh bolt]

ann sounds like name from vietnam

[tulip pier]

what is sin(pi/3) in it's exact form?

[vale wigeon]

sin(pi/3) = sqrt(3)/2. what's your point?

[tulip pier]

why is it not 2sqrt(3)/4

or increments of that

[vale wigeon]

you could write it as 2sqrt(3)/4 too.

you could write it as 42069sqrt(3)/84138 if you so desired

it's the same value, just written differently

[tulip pier]

but the are different triangle correct?

[vale wigeon]

what are you talking about?

you didn't bring up any triangles.

all you asked me for was the sine of pi/3, or 60 degrees

[tulip pier]

so within that question would a tanx=30/72 triangle fit in?

[vale wigeon]

"tanx=30/72" what

what's a "tanx=30/72 triangle"?

[tulip pier]

i am talking about the question above that we are answering

[vale wigeon]

if you mean a triangle whose legs are 30 and 72 then you should say "a triangle whose legs are 30 and 72"

this triangle would have the same angle A as the ABC in the diagram

and due to other things in the diagram, 72 is too large to be the size of AB

[tulip pier]

yeah so it cant be that right so it has to be a specific triangle

[vale wigeon]

no it doesn't.

[tulip pier]

it has to be only a slect few to fit the question

yes????

[vale wigeon]

no

[tulip pier]

it cant be too big

[vale wigeon]

there are infinitely many possibilities

and nobody said any of the lengths had to be whole numbers either

[tulip pier]

your looking way too much into this

[vale wigeon]

we could have its legs be 9.23774 and 22.170576

i am not looking too much into this

i'm just trying to dispel a misconception you're having

[tulip pier]

if i told you to draw a sin(x) = 1/2 what would you draw?

[vale wigeon]

i would ask you to clarify what you're talking about

do you mean a triangle with an angle x such that sin(x) = 1/2?

[tulip pier]

that is the question worth 1 mark

if you cant do it you get 0

[vale wigeon]

do you mean a triangle with an angle x such that sin(x) = 1/2?

[tulip pier]

the question is draw sin(x)=1/2 that is it

[vale wigeon]

that's it, just "Draw sin(x) = 1/2" no further words or instructions?

[tulip pier]

yeah that is it

worth 1 mark

[vale wigeon]

then i'm going to draw the equation sin(x) = 1/2

maybe make it pretty

[fathom pulsar]

hey can somebody suggest a chemistry related server regarding doubts,discussion etc.

[vale wigeon]

if that isn't what you meant then too bad so sad

[tulip pier]

ok cool you got 0 for the question

[vale wigeon]

and?

i don't see your point

[alpine sable]

Can someone look over this, I have looked at it so many times and nothing seems to be wrong from it. I need to figure this out for my project.

[tulip pier]

i am done maybe someone else can explain it in a way you understand

[sly mantle]

see #old-network

[fringe yoke]

Do you not understand that trig functions are ratios?

[vale wigeon]

do you mean that it's somehow my fault that i couldn't understand what your 'question' wanted me to do from deliberately vague wording?

is that what you're saying? @tulip pier

[tulip pier]

solve this however you like

[vale wigeon]

i've said it before and i'll say it again

[tulip pier]

if you think it is unsolveable you get a fat 0 in a test

good luck

[vale wigeon]

tests can be, and often are, flawed

[fringe yoke]

Duck be nice

[vale wigeon]

your refusal to acknowledge that is concerning

[tulip pier]

find a way to get the most marks

[vale wigeon]

oh, so you're a grade-chaser.

[tulip pier]

that is what you do in a test yes

[vale wigeon]

you don't actually give two shits about the math, all you care about is playing this fucking game of telephone with your teacher.

[sly mantle]

for the record, to ‘draw sin(x)=1/2’ is to draw the vertical lines at values of x satisfying sin(x)=1/2

[vale wigeon]

you mean like for a graph of y=sin(x)?

[lethal spoke]

Hey @tulip pier

[sly mantle]

now this convo has been going nowhere for the past 10min and i see no reason to keep it up

[tulip pier]

?

[lethal spoke]

Just invited you to a discord where they actually help and not insult people who are asking questions

[sly mantle]

i’m convinced the prior question is unanswerable until more relevant details are given, and let’s leave it alone

[vale wigeon]

are you saying i insulted duck

[lethal spoke]

Yes i am LD

😄

Dont be rude and just help people

Swearing at them isnt assistance

[vale wigeon]

duck isn't even the OP lol

[lethal spoke]

Ok and? is swearing ever useful

[sly mantle]

let’s all move on from this convo

[lethal spoke]

You arent the smartest in the room

But fine

[vale wigeon]

and you cannot and will not tell me when i can and can't say fuck

[tulip pier]

Look lets just put it behind you get 0 on the test and i get the mark cause i have complete the question

[sly mantle]

sigh

[vale wigeon]

what the fuck

[sly mantle]

b&

[vale wigeon]

thank you roketto

also ty for not immediately deleting their msgs so i could more easily block them

[cinder falcon]

,rotate

[tulip pier]

I found the first point that the graph is above 3.2 but I can't get the other point

[clever folio]

For sin(t * pi/6)=2/7 if you let u=t * pi/6 do you see how on the unit circle there are two values for u that make sinu=2/7 in the interval 0 to 2pi?

And then every other angle u that satisfies sinu=2/7 is just one of those two angles plus 2kpi for k an integer?

[tulip pier]

how do you get the 2 values?

wait i am so dumb

omgggggg

[clever folio]

It helps if you look at a unit circle to see intuitively I guess.

[tulip pier]

sine is postive in the 1st and 4th

omg i am so dumb

[clever folio]

But any sine value greater than 0 has two angles that produce it in the unit circle.

[tulip pier]

can you post this in another channel please?

[clever folio]

I did not really look at your work besides that Duck. I just noticed ur trying to solve an eqn of the form sin(ax)=b which can be figured out in terms of the unit circle like I mentioned.

[round gulch]

?

[tulip pier]

yeah i just need the 2 points where the grpah is above then intergrate to find the area under the curve

[tulip pier]

have you read the rules in how to ask a question?

[clever folio]

What, why integrate?

[round gulch]

I did this before and nothing happened

I just send my work and they helped me

[clever folio]

It's more of a courteousy thing.

[round gulch]

should I be doing something else?

[clever folio]

Since duck already asked a question

[round gulch]

Oh

K

[clever folio]

For ur sisters thing mixed fraction notation is sorta misleading

It's shorthand for adding rather than multiplying

[tulip pier]

i need the times that the waves are above 3.2m which the vaules on the y axis so i would intergrate right?

[clever folio]

So y=sin(ax) gives the height right?

(a=pi/6)

Well I guess y=3+0.6sin(t * pi/6) does

[tulip pier]

yeah the y is the depth of the wave at a point in the day

[clever folio]

Okay so the solns of this eqn for a constant y=3.2 tell you when the wave rises above and below 3.2

So don't those solns tell you exactly the times the waves are above 3.2 meters?

[warped phoenix]

is this channel still in use

[tulip pier]

nah it is done

[warped phoenix]

did i do this right?

for the sample standard deviation i took the square root of the given variance

sqrt(17.6) = 4.20 and sqrt(10.93) = 3.31

[tulip pier]

what was n?

[warped phoenix]

mb i just realized i didnt include that

heres the full thinbg

i just put n as 20

because there were 20 petri dishes

it may need to be 10 though

i wasnt sure on that

what do you think?

[tulip pier]

pre sure it is 10 as this would be a form of bivariate data

as the dark is getting calculated seperately

so it would be standard error: 1.328

and 1.047

[warped phoenix]

ohhh ok

so then

[tight locust]

OHHH OK

[warped phoenix]

do you know what id be doing for this?

[warped phoenix]

the left one is SE

so for the dark, the SE is 1.33

would i just draw a line going from the top of the dark bar down to 1.33?

[tulip pier]

yeah

[short flare]

Can any1 help me with d(i)

[alpine sable]

what does LS and RS mean

im confusion

[sage bronze]

Left side

and Right side

i would assume

[alpine sable]

WOWW IM SO STUPID 😭😭

ty for clarifying 😭

[dreamy bone]

Hey! I was just wondering like what's the difference between polar form and modulus argument form?

[sly mantle]

none really. both use magnitude & angle

in polar/exponential/phasor form
$$r\cis(t)=re^{it}=\ph rt$$

[ocean seal]

Dreadful Encore of Twisted Karma

[wheat acorn]

hellol

I am struggling here

[reef dust]

Try doin somethin using dot product

[wheat acorn]

ok so

I saw that

but I think I need to convert from spherical coordinates or cylindrical

I'm not sure which I need to convert from?

and I also don't know how 3 dimensions changes this

and I also don't know how the point given changes this

[somber osprey]

how to be smart

[wheat acorn]

?

can someone help me out it's past midnight

I'm starting to not be able to think straight I just need a little nudge

[dreamy bone]

Gotcha thanks dude

[wheat acorn]

@reef dust hey if you're still here I still need help

[alpine sable]

can anyone tell me how to do this

[reef dust]

Yea wht is it ?

[wheat acorn]

the question I posted above

I'm not sure what to do and I don't really know how to handle the at point P part of the question

so I'm sort of lost

I keep trying to do the dot product in different ways but I keep getting weird answers

[deft python]

How do you describe a linear equation in your own words?

[clever folio]

Is there more to this question than just that?

[placid zinc]

Well, I start to speak. I have to use my knowledge from high school

[clever folio]

I guess you can always say "the line from this pt to that pt"

Or "the line through this pt with slope <blah>"

[placid zinc]

I make sure to reflect on what I'm saying in case I am saying something wrong, as linear equations are a very specific thing

[fresh bolt]

straight line graph?

directly proportional?

[deft python]

Um yes also What common characteristics do these equations have?

[clever folio]

There's a couple common forms of a line. Slope intercept is one and another gives you the equation of a line given one point and the slope.

[deft python]

And this sir??

Ty btw

[clever folio]

I forgot the second one also needs the slope.

Slope intercept and point slope are the names of the things I'm explaining poorly.

[deft python]

Okii ty sir!!

[snow nest]

can someone explain this to me

so far i've always expanded then used dy/dx

is this method faster?

[rigid smelt]

lmao did they just write d/dx *x -1 to represent the derivative of (x-1)

but anyway, they used the product rule

say you have a product of two functions f(x) and g(x), the derivative of f(x)g(x) is f**'(x)g(x) + f(x)g'**(x)

[snow nest]

so dy/dx of (x-1) = 1
1(x+2) = (x+2)
dy/dx of (x+2) = 1
1(x-1) = (x-1)
x+2+x-1 = 2x + 1

so my main question is: would this be faster then simply expanding and using dy/dx?

[lusty ibex]

just use y'

[rigid smelt]

well "faster" kind of depends here, if you feel like you can expand (x-1)(x+2) faster than just do that

[lusty ibex]

instead of dy/dx bc dy/dx is normally on differential equations

or rates

[rigid smelt]

if you feel like you can not expand (x-1)(x+2) very quickly then use the product rule

either way, you would still end up with the same answer and the marker will not care at all

[snow nest]

i'm used to dy/dx and it's been shown on my textbook, so i'm going to use dy/dx
also i'll expand it's faster for me

also I have a somewhat dumb question

[ocean seal]

waler

[snow nest]

say i had this term $\frac{x^3}{y^2}$

[ocean seal]

Slime_Bob

[snow nest]

okay i'll do that

[snow nest]

how would I represent it with uhh
like move y up

would it be x^3y^-2

right?

[lusty ibex]

yea

[rigid smelt]

yes

[snow nest]

okay thanks just making sure

for some reason i thought it was x^3 + y^-2

[lusty ibex]

btw why not just expand and diffrentiate

[snow nest]

i was planning to

but i just wanted to see what this other method was

[lusty ibex]

i mean product rule is normally used for something like xsinx

[snow nest]

yeah we haven't learn that stuff yet

currently having an antidiff and diff SAC

wait

are SACs an australia only thing

[lusty ibex]

no bro ur capping

its atar

[snow nest]

yeah but your atar is calculated using your study score

which is calculated from SACs and other stuff

[lusty ibex]

wait hsc i ment

whats sac?

[snow nest]

oh is hsc a NSW thing

[lusty ibex]

oh yea i forgot that our country is alittle stupid and like to call it different stuff

[snow nest]

in VIC, it's like this
SACs (School Assesed Coursework) goes towards study score, which goes towards your SAC

which country?

[lusty ibex]

wait wait what about the vce then

[snow nest]

you can only get SACs in VCE subjects

man it's hard to understand and even harder to explain

like my god i spent at least 6 hours trying to understand it
and i still don't get it thaaat much

[fluid mica]

Hi there does anyone know how to do this?

Find all the complex solutions to z^4 + a^4 = 0, where z ∈ C, a ∈ R, a > 0,
and illustrate them in the complex plane.

[grave hinge]

Hello everyone!
Why do we define basis of vector-space and span of vectors?
Can someone help me see the actual picture!

[main zephyr]

lets say that 20 apples are distributed to 4 children, each children has at least 5 apples, whats the most amount of apples a children can have?

this is primary school level math but i havent done it in a while so i forgot

[grave hinge]

Since each child must get at least 5 apples, hence most apples any child can get is 5

[main zephyr]

oh i see

i kinda understand yet i kinda dont

[grave hinge]

Okay let's try again
draw 20 lines representing 20 apples. Since each child must get atleast 5 apples, so cross out 5 lines for each child(because lines are apples now), how many lines remain now?

[main zephyr]

i think i understand now

[vale wigeon]

if everyone gets the bare minimum of 5 you already run out of apples to give

[vale wigeon]

have you done stuff with vectors in two and three dimensions?

maybe i could motivate the ideas of basis and span based on that, if you have

[main zephyr]

i dont know if the problem is with the answer or what but heres the question:

"the remaining number of 4 divided numbers is 33, each number is not less than 28, whats the biggest number among the 4" (i translated this from chinese lol sorry if something isnt spelled right)

heres my working:

33 * 4 = 132 (max number)
28 * 4 = 112 (minimum number)
132 - 112 = 20
28 + 20 = 48 (max value a number can have)

but the answers does not have a 48 among them

[vale wigeon]

i think something was lost in translation here...

@grave hinge let's move to #linear-algebra just in case

[main zephyr]

well i'll use algebra to show u the question:

n / n / n / n = 33

"the value of each n is not less than 28, whats the possible biggest value n can have"

[vale wigeon]

is this (n/n)/(n/n)

or ((n/n)/n)/n

or what

also maybe don't use the same symbol for different things

[main zephyr]

i am lost in translation

well the result of the devision of 4 n is 33

[grave hinge]

@main zephyr Excellent

[vale wigeon]

sorry potsu i have no idea what you're talking about

[main zephyr]

wait no

wait im confused

[grave hinge]

Yes,
I have done basic operations, dot, cross etc

I am studying from Khan Academy!

[grave hinge]

See you there mate

[main zephyr]

"the average number of 4 numbers is 33, each number cannot be lower than 28, what is the maximum value a number can have"

[vale wigeon]

oh AVERAGE!

[main zephyr]

this is what ive done so far

33 * 4 = 132 (max number)
28 * 4 = 112 (minimum number)
132 - 112 = 20
28 + 20 = 48 (max value a number can have)

[vale wigeon]

so it's (a+b+c+d)/4 = 33

[main zephyr]

yes

[vale wigeon]

48 seems to be the right answer...

[main zephyr]

yea...

[steep hearth]

-mode is the number repeated most often
example 10,10,11,12,13
mode =10

what if no repeated number?

[vale wigeon]

then there is no mode

[stuck jolt]

There can be 2 modes though?

[vale wigeon]

or if you want, every number present is a mode

[stuck jolt]

yeah, that seems more accurate in my opinion

[vale wigeon]

don't reply-ping me twice in a row please

[stuck jolt]

Sorry, I was just correcting smth...

[grave hinge]

@cursive bloom Are you familiar with coulomb's law!

Wonderful!

Also, ask yourself, how would you calculate forces if the charges are present in different media

[alpine sable]

also, #old-network

merci.

[mortal void]

is this free right now?

i got a riddle asking

the product of two successive odd number is 35! and using variables and operation symbols prove it

[stuck jolt]

35 factorial right?

What I would do here

[mortal void]

yes

[uncut tapir]

Well we know right off the bat the factors of 35! by definition of the factorial

[stuck jolt]

Is direct proof

Woah this took a while to send

You know an odd number can be generalised as 2n-1 or 2n+1

[mortal void]

yes but i forgot

[stuck jolt]

And you know the factors as gaunter said

[uncut tapir]

Yes. The bigger factors would have to equal 2n+1

[mortal void]

i learnt it on arithmetic progression

[uncut tapir]

I don't see how this can work though. An even number times an odd number is always odd right? And an odd number times another odd number is always odd too

Multiplying two odd numbers would require 35! to be an odd number. But this is impossible since 2 is a factor

[vale wigeon]

are you sure that's exactly what it says

[mortal void]

Okay wait

[vale wigeon]

as-is, it is impossible to multiply two odd numbers - let alone two consecutive odd numbers - and get 35 factorial.

[uncut tapir]

If it was just 35 alone, it would be 7 and 5

[mortal void]

Using variables and operation symbols, express each of the following verbal statements as algebraic statement:
now question- The product of two successive odd number is 35*

[mortal void]

yes

[uncut tapir]

That's also impossible, 11 is prime

[stuck jolt]

Yeah

[vale wigeon]

so we're just translating statements into symbols, without regard for whether the statement itself is true or false.

am i understanding this correctly?

[stuck jolt]

You are, there is no solution

[vale wigeon]

then perhaps "the product of two consecutive odd numbers is 11" would be (2n+1)(2n+3) = 11

[mortal void]

p.s- its answers is on back of my book is z (z+2)

[vale wigeon]

just z(z+2)? not z(z+2) = 11?

[stuck jolt]

Ohhhhh

They just want

You to generalise it

That makes sense

[mortal void]

yeah =35**

[vale wigeon]

...

[stuck jolt]

???

[vale wigeon]

why did you say "eleven" when you meant 35

[stuck jolt]

Bruh

[mortal void]

lol i made a mistake

[uncut tapir]

Well the same strategy holds. Write down all factor pairs of 35 and find the one where they are two consecutive odd numbers

[vale wigeon]

gaunter

that wasn't the question

if eive d is to be taken at their word, all we need to do is write down the statement symbolically

[mortal void]

yes

[mortal void]

but thanks for giving a idea

[vale wigeon]

i'll be honest

there are many ways to translate your statement into symbols

any exercise that insists or implies that there is one and only one correct translation is a bad exercise

[uncut tapir]

I prefer the (2n-1)(2n+1) personally

[stuck jolt]

Same, it's cleaner

[uncut tapir]

Nice difference of two squares equation

[vale wigeon]

sure, that's entirely possible

[vale wigeon]

...........

[mortal void]

lol i thought that guy is bowing down

and he has rolled his notebook on hands

[vale wigeon]

the sticker is literally named "spivak smelling his shoe" but ok

[mortal void]

yea

[alpine sable]

If the determinant is 0, is the area of ​​a transverse vector a and vector a 0 when it's a parallelogram and 0 if it's a triangle as well?

[glass lichen]

if the det is 0, then the oriented volume is 0

vectors dont have area also

[alpine sable]

i mean you can draw a parallelogram if you have two vectors

[glass lichen]

yes

but that's not the same as "this vector has an area"

[alpine sable]

will the area of that parallelogram the 2 vectors form be 0 if the determinant is 0

[glass lichen]

yes

[glass lichen]

cause the operator defined by the 2x2 matrix will squish the plane into a line or the 0 vector

[stuck jolt]

If the determinant is 0, the volume of the region with columns is 0

[alpine sable]

will it just be 2 zero vectors then?

[glass lichen]

I dont need an echo.

[glass lichen]

no

[alpine sable]

Okay

[glass lichen]

you can have non-zero 2x2's with det 0

[alpine sable]

can you try drawing what will happen if det(vectorA, vectorB)=0

[glass lichen]

.

[stuck jolt]

Sorry, but you didn't mention what I said above, and I thought it was interesting for them to know

[glass lichen]

The 2 vectors forming the parallelogram will map to the same line in R^2 for example

[alpine sable]

i think i know what you mean now

[autumn nacelle]

U guys seem smart, I like ur energy

[alpine sable]

*mosh smart

[glass lichen]

$\begin{bmatrix}1&2\2&4\end{bmatrix}$ has det 0, and geometrically the column vectors are both in the span of $[1,2]^T$

[ocean seal]

Mosh

[stuck jolt]

thx xd

[autumn nacelle]

Tried doing math wanted to get good at it but just cant hahaha

why I appreciate the energy

Im better at using my body than brain

Cya all, keep working hard and u will change the world 100%

[vague coral]

weird flex but ok

[alpine sable]

this?

there are two (one of them cannot be seen though) btw

[glass lichen]

Yes, both vectors lie on that line segment

so the parallelogram they form has to have area 0

since a line has area 0

[alpine sable]

yeah okay got it

[mystic sinew]

how do you decide what are the "possible factors" of a polynomial

[vague coral]

?

[jagged imp]

rational root theorem is what it wants you to use

[vague coral]

or you take +1 or -1 and plug in p(x) and see if you get 0

[ebon finch]

How do we prove that$\ \sum_{n=1}^{\infty}\frac{1}{nx^n}=\ln\left(\frac{x}{x-1}\right)?\ $
Where $x\in\mathbb{R}-(-1, 1]$.

[ocean seal]

VardhanR

[vale wigeon]

integrate a suitably formed geometric series perhaps?

[alpine sable]

I'm looking for help for a price calculation where the price increases more heavily the higher the input number gets.

For example, some formula that allows me to input numbers between 20-35 that returns an increasing value the closer we get to 35.

20 = $75,000 ($3,750 each)

25 = $150,000 ($6,000 each)

26 = $175,000 ($6,730 each)

35 = $350,000 ($10,000 each)

[ocean seal]

Aedra

[zinc fjord]

I wanna die

a + a + b + b + a − b − a + b − b = __a + __b

ignore the end with the underscore

,help

I wanna die

a + a + b + b + a − b − a + b − b = a + b
ignore the end with the underscore

[ocean seal]

Command `I wanna die

a + a + b + b + a − b − a + b − b = a + b
ignore the end with the underscorenot found! Use the,list` command without arguments to see a list of commands.

Aug 24, 2021, 12:17 PM

[zinc fjord]

,help a + a + b + b + a − b − a + b − b

[ocean seal]

Command a + a + b + b + a − b − a + b − b not found!
Use the ,list command without arguments to see a list of commands.

Aug 24, 2021, 12:17 PM

[strange owl]

so im trying to find the best algo to find this pattern 1111 41 1411 111421 it counts how many of each number are there, i.e. 4 times 1 so 41
i know this has a name and i'd love if someone tells me the name of the algorithm, thanks in advance!

[prime badge]

it's run length encoding

it's not like, an algorithm, there's no trick

[robust palm]

,list

[ocean seal]

My commands!

Use ,ls to obtain a briefer listing, and use ,help <cmd>to view detailed help for a particular command, or ,help to view general help.

If you still have questions, talk to our friendly support team here.

LaTeX Rendering

Render LaTeX code and configure rendering options.
​ ​ ​ ​ ​ ​ ​ ​ ​ ​ tex: Render LaTeX code.
​ ​ ​ ​ ​ ​ ​ ​ ​ ctan: Searches the ctan
​ ​ ​ ​ ​ ​ ​ texdoc: Searches the texdoc
​ ​ ​ ​ ​ ​ autotex: Toggle whether your LaTeX is automatically rendered.
​ ​ ​ ​ ​ preamble: View or modify your LaTeX preamble.
​ ​ ​ ​ texconfig: View or modify your personal LaTeX rendering options.
guildpreamble: View or modify the guild's default LaTeX preamble

Guild Admin

Guild administration
​ ​ ​ ​ ​ ​ ​ ​ config: View and set the guild configuration.
​ ​ ​ ​ ​ ​ ​ ​ rmrole: Deletes the provided role
​ ​ ​ ​ ​ ​ ​ disable: Disable commands in this guild.
​ ​ ​ ​ ​ ​ editrole: Create or edit a server role.
​ ​ ​ ​ ​ autoclean: Automatic deletion of messages in the current channel.
forgetrolesfor: Forget stored persistent roles for one or all members.

Page 1/4

[alpine sable]

How do I find the LCF of 4, 9, 16, 25 and 36?

LCF means least common factor

I know to prime factor those numbers, but then I dont know what to do with it.

Like 4 = 2 * 2

9 = 3 * 3 and 16 = 2 * 2 * 2 * 2 and so on.

[prime badge]

for each prime, you take the largest amount

2, you find the number with most twos, and take that many

and so on

[alpine sable]

2^4 * 3^2 * 5*2?

[prime badge]

yes, that

wait, divisor

no, it's the opposite

you look for the least amount, and take that many

if it has none, that counts, you take 0

no what

"least common factor" is neither

it's just always 1

it probably doesn;t mean least common factor

[vestal oriole]

occupied?

[prime badge]

no

[vestal oriole]

Can I get some help on this

[edgy breach]

2nd differential

[prime badge]

yeah, just that thing twice

[vestal oriole]

wdym

[glass lichen]

differentiate twice

[edgy breach]

^

[vestal oriole]

oh

ok

[edgy breach]

u think

time is in seconds, displacement is in metres

[vestal oriole]

im dumb, how do I differenciate dractions?

[edgy breach]

use ur textbook

its a bit long-winded to explain it on here

this is something you should've learnt throughout the year

there are some very good, very simple videos online. Try TLMaths on yt

[vestal oriole]

x = 2t

?

[prime badge]

it's (1/20) × t

first derivative is 1/20

second is 0

[glass lichen]

no

[edgy breach]

no

[prime badge]

yeah no

[glass lichen]

dont change the question.

[prime badge]

it's upside down

[edgy breach]

lol

[glass lichen]

$\frac{1}{t}=t^{-1}$

[ocean seal]

Mosh

[glass lichen]

@vestal oriole

[vestal oriole]

o

what happened to the 20?

[prime badge]

it's 20 × t^-1

[glass lichen]

It's called not doing every step for you

aka a hint

[vestal oriole]

oo

[edgy breach]

So, I'm going back through some random stuff from first year of ALevel maths, and Im going over the cast diagram. I can easily use it to find values for theta. Eg sin(x) = 1/2 find x, etc

but I'm finding it difficult to find values for sinx, tanx, cosx

eg work out the value of tan135 using the cast diagram

any tips lol

[glass lichen]

what quadrant is 135 in?

[stuck jolt]

hmmmm

[edgy breach]

second

or the sin quadrant

[glass lichen]

Yes, so tan is what in the 2nd quadrant?

[edgy breach]

negative

[glass lichen]

ok, and your reference angle is 45, so it's -tan(45)=-1

[edgy breach]

why is my reference angle 45 though?

[glass lichen]

cause... what else would it be?

135=180-45, so it's 45

[edgy breach]

omg, so i confused myself. I got -1 before, but then I tried the same method on tan120

and then double checked it on my calc and it was wrong

my calc was in radians 🤣

[glass lichen]

ok

[edgy breach]

thanks for your help

[rose geode]

is this full

[edgy breach]

u can use it now

[rose geode]

ok i need help on some trigonometry i’m in geometry but they are giving me this

[edgy breach]

what year/grade are u in

[rose geode]

going into 11th but i’m finishing some 10th grad geometry

[edgy breach]

ok ye makes sense

ok

so this is relatively simple stuff once u get the hang of it

have u used SoH CaH ToA before? @rose geode

[rose geode]

not really i have this chart from my dads of books

dads old book

[edgy breach]

where do you live?

do u not have calculators in ur exams now ?

@rose geode

[rose geode]

it’s not an exam it an online academy

[edgy breach]

ok

but are you allowed to use calculators

[rose geode]

yea

[edgy breach]

ok

well then we can say bye bye to that chart lol

[rose geode]

ok

[edgy breach]

1 second, im going to write some stuff down and post it to show u

@rose geode

u need to learn the theory to be able to do the question

if this isnt helpful just search "Soh cah toa" on yt

if u want me to keep helping lmk

[hollow pelican]

hi guys does anyone know how to solve this

[rose geode]

@edgy breach ok so how would i solve the problem

sorry yoda room full

[edgy breach]

ok so out of the opposite, the adjacent, and the hypotenuse, which 2 sides on there do you have values for? @rose geode

[rose geode]

@edgy breach opposite and adjacent

[edgy breach]

yup

so which equation involves those 2 sides?

[rose geode]

tan so i would divide them

[edgy breach]

so tanx = 8/10, yes, but then u are not done

so tanx = 0.8

now, which calculator do u have?

[mystic inlet]

i haven't clicked on this server in 6 months

ok no 3 months

[rose geode]

@edgy breach the standard one on my iphone and desmos

[edgy breach]

Ok, here's a tip: buy a calculator lol

But we can still work with that

[mystic inlet]

Imagine not using PhotoMath™

[rose geode]

i have that but it doesn’t work for trigonometry

[glass lichen]

why would I use that when I can just... do the math?

[edgy breach]

Imagine not having a casio fx cg50 smh

[hollow pelican]

ikr

[edgy breach]

ok go on desmos

[rose geode]

@edgy breach ok

[edgy breach]

https://www.desmos.com/scientific

press on where it says function

now press the arctan button

[rose geode]

ok

[edgy breach]

so to the nearest tenth it's 38.7

degrees

then when u have another question like that

you just need to relabel the different parts of the triangle

so if you have to find y next

u will need to change which side is the opposite and which is the adjacent

then work it out from there

using the info I gave you in the picture

[rose geode]

ok thank you have a good day

[hollow pelican]

how to solve this qn?

[edgy breach]

you2

[edgy breach]

integration

[hollow pelican]

using second order differential?

[edgy breach]

integrate it however you'd like

[restive locust]

<@&286206848099549185> \

how would i put this in quadratic form

[wary stream]

You have to wait at least 15 minutes before pinging helpers

[restive locust]

ok

[alpine sable]

hi

okay so

@restive locust are you there?

[restive locust]

Yea

The topic was quadratics and parabolas but I just wasn’t sure how this would go into the form of it

I tried a bunch of different things but it all didn’t really make sense

[dusky bluff]

@restive locust the basic idea of the problem is to form two equations in two variables and solve it.

[restive locust]

Huh

Could you give me an example

[spice adder]

hi all

[dusky bluff]

@restive locust For first equation use speed distance formula, with variable time t, constant speed v and distance 108. For second equation add 2 in speed and subtract 9/2 hrs. Then solve the both equations.

[latent iron]

A phone number is built of 5 numbers. The last number is 6 and all number are equal to 0. Each number is bigger than the one beforehand
Find the number of options available for phone nukbers

[restive locust]

Oh right. That actually makes me feel so stupid because the topic wasn’t about speed I completely forgot I could use speed / distance

I’m so tunnel visioned lmao this gives me some insight to handle future questions thanks @dusky bluff

[latent iron]

Is there any way to do this without bruteforcing the amount of numbers?

[dusky bluff]

@latent iron Are you clear about you problem. I have difficult understanding it." all numbers are equal to 0" statement.

[latent iron]

All digits in the phone number are not equal to zero

1 through 9

They are actually 1 to 6 since the last number is 6

But that's a question given on a limited time exam and I wondered if there is a fast way to solve it

[native temple]

hey What dies intercepting mean in this context

I googled it

[dusky bluff]

Since the last digit is 6, the only possible remaining values are 1 to 5. But we need to select only 4 of them. So answer would be 5 choose 4.

@latent iron the answer is 5 possible ways.

[native temple]

and it said “to include (part of a curve, surface, or solid) between two points, curves, or surfaces”

[white karma]

A chord AB of length 2 cm is drawn in a circle of radius 3 cm. A diameter BC is constructed, and the tangent from C is drawn. The chord AB is extended to meet the tangent at D. Find the length of AD.

my question still needs answering

<@&286206848099549185>

[autumn rivet]

srry thought that was a answer to the question on top

[white karma]

np

[tight locust]

stats q:

when taking the standard deviation of a set of data

why do you divide by n-1

instead of just n?

[white karma]

...

[tight locust]

isn't the goal to take the average squared difference? so if there are n differences you should divide by n?

[white karma]

sorry my question is still open

[white karma]

.

[tight locust]

draw it

[white karma]

i have

I got 4.67

the answer got 16

soo

https://media.discordapp.net/attachments/879761780279242752/879761824113909821/Screenshot_20210824_232410.jpg

@tight locust

[wary stream]

Hope this helps, it is from my book
"It is natural to wonder why the sum of the squared deviations is divided by n − 1 rather than n. The purpose in computing the sample standard deviation is to estimate the amount of spread in the population from which the sample was drawn. Ideally, therefore, we would compute deviations from the mean of all the items in the population, rather than the deviations from the sample mean. "

[white karma]

dldh06 any ideas

for mine

?

[wary stream]

Chord tangent theorem

[white karma]

is the answer 16?

[tight locust]

thanks but that doesn't explain anything

of course it would be better to work with the entire population instead of the sample. but why n-1 ?

[wary stream]

It's an estimate the amount of spread

[tight locust]

yes but why n-1 instead of n

[alpine sable]

n-1 overfits the data

[wicked merlin]

n+g=72 right?
g(other girl)
n(the girl who gives eleven cards)

2n=g+11

or n-11=g/2

[undone dock]

Yes this one is right

Wait actually

it's close, remember that g now has 11 more

[tight locust]

?

[wary stream]

Also from my book,
"It is a mathematical fact that the deviations around the sample mean tend to be a bit smaller then the deviations around the population mean and that dividing by n - 1 rather than n provides exactly the right correction"

It's just to fix the error

[alpine sable]

to fix the error of over fitting

if you dont use n-1 you will develop a model that will over estimate. doing n-1 fix that error

[wary stream]

Basically what I just said too

Error fixing

[alpine sable]

yes, i think i just said it in a way thats easier to understand than your book 😛 hahaha

[wary stream]

You probably just read it and summarized it

[alpine sable]

I am a data analyst...... i know what the point of n-1 is without your book.

[tight locust]

what is overfitting and why is it bad

[cerulean surge]

How do I do (3) and (4)?

<@&286206848099549185>

[oak chasm]

No, 2(n - 11) = g + 11.

The girl who gave 11 has 11 less. The other girl has 11 more.

Or, n - 11 = 1/2(g + 11)

Either one.

[spring inlet]

@tight locust It's n-1 because you're estimating std dev using the sample mean; n-1 are the degrees of freedom. If you had the population mean to calculate the population std dev, it would be n. Using n-1 gives you an 'unbiased' estimate. see: https://en.wikipedia.org/wiki/Unbiased_estimation_of_standard_deviation

[elfin talon]

Can I use this to prove that n^0 = 1

[spring inlet]

If you want to prove n^0 = 1, then you can't use the fact that n^0 = 1 in your proof.

[elfin talon]

I didn’t

[glass lichen]

You did

Also inf root is bullshit

[elfin talon]

N^0 is infinite root lol

Let me explain

The radical of a number over 1 is always over one

this is effectively x radical y

As y approach’s 0, x approaches 1(never going under it)

[placid zinc]

We all understand how you get to n⁰

[elfin talon]

Yeah that’s when I proved it lol

Can you let me continue

[placid zinc]

But how did you then get to 1?

[elfin talon]

It’ll make sense

[elfin talon]

So if y is equal to infinity, which will make 1/y = 0, then the exponent will equal 1

So x radical 0 = 1

So x^0 = 1

Get it?

[spring inlet]

Why must it equal 1

[elfin talon]

It is one

[spring inlet]

Prove it

[elfin talon]

Oh I get your question

[placid zinc]

Typo? Exponent will equal 0

[elfin talon]

The radical/exponent of every number over 1 is at least 1, so as the number decreases it will come closer and closer to 1

[elfin talon]

Correction: the number will equal 1

And yeah the exponent will equal 0

So it sorta converges towards 1

[elfin talon]

Hence the limit

@placid zinc does this make sense

I’m really bad at explaining

But I think I did a good job

[placid zinc]

Yeah it makes sense

[elfin talon]

You can also use repetition permutations which are x^n, if you have x elements and 0 slots your gonna have 1 combination which is null

[spring inlet]

You may want to write a little bit explaining it, if this were a real proof on a test, makes sense now

[elfin talon]

For sure

[placid zinc]

There's a faulty logic there. We don't define x^n as "the number of permutations of x elements into n slots".

[alpine sable]

is there a on going question ?

[elfin talon]

I’m both cases, there’s an empty variable which is always gonna result in null

Never thought it was the slots I just guessed

Since it doesn’t matter

1 combination

Null

[glass lichen]

You also assume 1/inf=0

Which is false

[elfin talon]

I never said that

[glass lichen]

You did

[elfin talon]

There are no assumptions made

[glass lichen]

Infinite root if x makes no sense

[elfin talon]

Fuck

I did say that shit

[glass lichen]

Yes

[elfin talon]

What I meant is that as n approach’s 0, x approach’s infinity, so when n is 0 x is infinity

[glass lichen]

Now you can salvage it by showing the limit is 1, then show the limit US equivalent to n^0

[elfin talon]

So the infinit root of x is x^0

[glass lichen]

Hence getting n^0=1

[elfin talon]

So yeah the infinit root part isn’t wrong

[glass lichen]

Again

Infinite root isn't a thing

And n can't be 0

n has to be positive

[elfin talon]

Yes but it arbitrarily approach’s it

[elfin talon]

.

I know I said that accidentally

@glass lichen does it make sense

In theory x radical infinity is in fact 1 I still insist

It really depends if you think convergence is good enough

[radiant agate]

What numbers would make the denominator zero?

[alpine sable]

Heh.

[wary stream]

Set the denominator equal to zero and solve

[alpine sable]

Epic.

[wary stream]

Don't be telling answers

[elfin talon]

Shit yeah

[alpine sable]

is f(x) = 0 a function?

[brave pelican]

👍 a sort of function

[alpine sable]

a constant function

[meager jay]

Hi

Is $x=0$ an inflection point of $y = x^{\frac{1}{3}}$?

[ocean seal]

Delta0001

[meager jay]

If yes, then can I get some textbook reference which says that for inflection point f''(x) doesn't need to be defined

If no, then please explain why not

[alpine sable]

when will the function $y = 2x - 16$ have the biggest value if you can insert $${-8,-6, -4, -2, 0, 2, 4, 6, 8}$$ at x's place

[ocean seal]

Shaky

[alpine sable]

it will be -8?

$$y=2\cdot(-8) - (-16) = 32$$

[wary stream]

Why is there a double negative?

[ocean seal]

Shaky

[alpine sable]

wdym?

there's supposed to be one

[wary stream]

Here you just have -16

[wary stream]

Here you have -(-16)

[alpine sable]

it's just me being sleepy

[wary stream]

Which is it?

[alpine sable]

if you have y = 2x - 16, the function will have the biggest value when x=-8

oh wait maybe not

[wary stream]

$$2*(-8) -16 \neq 32$$

[alpine sable]

i know

[ocean seal]

dldh06

[alpine sable]

i'll just try with them all ig

y = 2(-8) - 16= -32
y = 2(-6) - 16 = -28
y = 2(-4) - 16 = -24
y = 2(-2) - 16 = -20
y = 2(0) - 16 = -16
y = 2(2) - 16 = -12
y = 2(4) - 16 = -8
y = 2(6) - 16 = -4
y = 2(8) - 16 = 0
so the biggest value is when x=8, right?

[wary stream]

Yes

[glass lichen]

@elfin talon would you like to see my proof using your idea?

[elfin talon]

Yeah pls

[glass lichen]

Ok let me TeX it

[elfin talon]

Go on then

[glass lichen]

RTP: $\lim_{x\to\infty}n^{\frac{1}{x}}=n^0=1$
First, since $n^x$ is continuous $$\lim_{x\to\infty}n^{\frac{1}{x}}=n^{\lim_{x\to\infty}\frac{1}{x}}=n^0$$
Next, let $\lim_{x\to\infty}n^{\frac{1}{x}}=L$ then we want to now show $L=1$
Consider $\ln(L)=\ln(\lim_{x\to\infty}n^{\frac{1}{x}}) =\lim_{x\to\infty}\ln(n^{\frac{1}{x}})$ since $\ln(x)$ is continuous on $(0,\infty)$
Then, $\lim_{x\to\infty}\ln(n^{\frac{1}{x}})=\ln(n)\lim_{x\to\infty}\frac{1}{x}=0 \ \implies \ln(L)=0 \iff L=1$

[ocean seal]

Mosh

[glass lichen]

So n^0=1

@elfin talon

[elfin talon]

@glass lichen amazing

Btw you admitted that 1/inf is 0

[glass lichen]

I didnt

Nowhere is $\frac{1}{\infty}$ written

[ocean seal]

Mosh

[glass lichen]

yeah

that's not 1/inf

[elfin talon]

Didn’t see the link

*lim

[alpine sable]

Where can i go, to ask simply maths questions, please and thankyou

[elfin talon]

Didn’t consider it

[alpine sable]

simple*

[elfin talon]

Sorry yeah

[elfin talon]

Ask here

[glass lichen]

#❓how-to-get-help

[elfin talon]

Amazing explanation tho

Mosh

[alpine sable]

My answer is wrong, what am i doing wrong in regards to this question

A goat is tethered to a post in the centre of a circular grassed area that has a radius of 6.2 metre. What
area of grass is the goat unable to reach if it is tethered by a rope 5.6 m long?

3.14 x 6.2squared

3.14 x 5.6squared

= 3.77m squared

[elfin talon]

Why does the question change the radius

[glass lichen]

,w pi*(6.2^2-5.6^2)

[ocean seal]

Results provided by WolframAlpha

Click here to refine your query online
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Requested by moshill1#9771

[elfin talon]

It first said it was 6.2 and then 5.4

[glass lichen]

Im going to guess you just messed up punching it in @alpine sable

[alpine sable]

tytyty 😄

[glass lichen]

because your working is correct, just not the final answer

[elfin talon]

I don’t think he meant that

Oh he did

Excuse me

[glass lichen]

well... that's what was said

[alpine sable]

https://tenor.com/view/facepalm-kermit-gif-13779445

You're right i entered it wrong into the calculator 😅

[glass lichen]

I mean regardless, if you write $\pi\cdot 6.2^2-\pi\cdot 5.6^2$ on your working you should get majority of the marks anyways, as you nailed the concept perfectly

[ocean seal]

Mosh

[tight locust]

now use the fact that it is a difference of squares

[alpine sable]

quick question

can this symbol: *

be used as a multiplication sign

like instead of brackets or x, you could use *

[glass lichen]

yes

it's how multiplication is written in text / code, also mimics the $\cdot$

[ocean seal]

Mosh

[alpine sable]

okie tysm

depends though, it's used for convolution

:0

depends on what you're doing and your level

[spark zenith]

how to solve this -6x = 48 ????

[alpine sable]

isolate x

also is 8ab the same as 8ba

[spark zenith]

I need to know how to do that not the answer (homework)

[alpine sable]

is 2 times 3 the same as 3 times 2? @alpine sable

[spark zenith]

need i do 48:(-6)??

[alpine sable]

ye

[alpine sable]

u need the answer???

@spark zenith yes

[spark zenith]

Oh ok i have another q but i need to find it

[alpine sable]

sure

@alpine sable 8ab is the same as 8ba is the same as ab8

a8b, ba8, b8a etc

but usually the variables are written alphabetically right?

[spark zenith]

3 x=1 ???
_
2

[alpine sable]

it's nicer yes

thanks for explaining Em,

$\frac32 x=1$

[ocean seal]

Em

[spark zenith]

YES THAT