Pre-cal 2

[round talon]

help needed

[flat prawn]

1. Wait patiently for a helper to come along.
2. Once someone helps you, say thank you and close the thread with:

+close

3. Feel free to nominate the person for helper of the week in #helper-nominations
4. Do not ping the mods, unless someone is breaking the rules.
5. If you're happy with the help you got here, and the server overall, you can contribute financially as well:

[round talon]

so

@turbid ridge

[turbid ridge]

ok

note that

[round talon]

i got the first one

[turbid ridge]

one revolution is just the same as travelling the circumference

[round talon]

it's 350 in/min

[turbid ridge]

oh ok

[round talon]

idk the second part

[valid tendon]

can you send the diagram

how were tere messages already

i was reading the problem smh

[round talon]

a is 18

c is 200

b is 4 and the gear is 7

i think if im doing that correctly

[valid tendon]

are you given distance from b to c really confused smh

[round talon]

no

[turbid ridge]

wait

u know the speed in in\min

and u wanna find it in m\h right

[round talon]

yes

[turbid ridge]

do u know how many foot 1 mile is?

[round talon]

5280

[turbid ridge]

do u know how many inches 1 foot is

[round talon]

in a mile

nope

[turbid ridge]

what

[round talon]

12 inches?

[turbid ridge]

1 foot = 12 inches

[round talon]

oh ok

[turbid ridge]

so

u can write

[valid tendon]

we know the speed in in/min already??

[round talon]

i think so

[valid tendon]

wha

[round talon]

i jus did 7 x 200/4

to find the linear speed

[turbid ridge]

$1 \text{ mph} = \frac{5280 \times 12 \text{inches}}{\text{hour}}$

[sinful pine]

wolfqz

[round talon]

to find our mph?

[turbid ridge]

this is how u convert

make the denominator in minutes too so u get it in in/min

[round talon]

idk man

im jus dumb

[turbid ridge]

do u get how the numerator here is 1 mile

[round talon]

yea

so do we put for our denominater 200?

cause that's what we are given

[turbid ridge]

Um no

whats 1 hour in minutes

[round talon]

60

[turbid ridge]

$1 \text{ mph} = \frac{5280 \times 12 \text{ inches}}{60\text{ min}}$

[sinful pine]

wolfqz

[round talon]

what next

[turbid ridge]

just move everything around to get

[round talon]

wdym?

[turbid ridge]

$1 \text{ in/min} = \frac{60}{5280 \times 12} \text{mph}$

[sinful pine]

wolfqz

[turbid ridge]

now find your speed

[round talon]

200 is our revolution

do add that ?

[turbid ridge]

no

you know the speed in in\min

solve for the speed in mph

[turbid ridge]

using this formula we derived

[round talon]

0.1363636364

[turbid ridge]

wait what

[round talon]

or is it 1056

[turbid ridge]

what speed did u get in in\min

[round talon]

350

i feel like im sped

[turbid ridge]

wym

if $1 \text{ in/min} = \frac{60}{5280 \times 12} \text{mph}$ then

$350 \text{ in/min} = \frac{60}{5280 \times 12} \times 350 \text{mph}$

[round talon]

nvm

thats for our in/min

[sinful pine]

wolfqz

[round talon]

im tryna find mph

[turbid ridge]

this is for mph

youre supposed to solve the RHS for mph

[round talon]

what is the anwser than?

for the linear speed

like im so confused

hello?

[turbid ridge]

hello

lets restart

doing

the question

[round talon]

i didn't have enough time to study

i can't restart

i only have 7 min to finish

[turbid ridge]

one revolution means youre travelling the length of the circumference

[round talon]

i've done every thing

[turbid ridge]

is this a test?

[round talon]

no hmw

[turbid ridge]

i mean redo the question

[round talon]

ok

[turbid ridge]

.

[round talon]

this is a college class

my life is on this

[turbid ridge]

the circumference is $2\pi r$

[sinful pine]

wolfqz

[round talon]

ok

[turbid ridge]

but r is 9

so it just becomes $9\pi$

[sinful pine]

wolfqz

[turbid ridge]

now, 200rpm means travelling $9\pi$ 200 times per minute, so, it means $1800\pi$ inch per minute

[sinful pine]

wolfqz

[round talon]

what about the mph is that 350

[turbid ridge]

which is approx 5,657.14

[round talon]

or am i incorrect

[turbid ridge]

i dont think its supposed to be 350

[round talon]

or are we doing the first part

[valid tendon]

isnt the rpm the pedal thing or the c part

[turbid ridge]

@valid tendon can u confirm

[round talon]

yea

[valid tendon]

here

[round talon]

3 min

btw

[valid tendon]

if youre biking and rotate the pedals once

youre rotating the chain about the c circle...?

[round talon]

nvm spoon feed me

[valid tendon]

this still doesnt use the last gear tho i still dont get it

[round talon]

tell me the explanation later

[valid tendon]

which is why ive stayed silent this whole thread

[round talon]

please bro

slide

jus this once

[turbid ridge]

me neither

[round talon]

i don't wanna use a late pass

[valid tendon]

neither of us get it

[turbid ridge]

its not gon be useless given info

but its not used either??

[valid tendon]

let me just go to my bike rn and stare at it (i cant, its midnight and my paretns will question me)

uh

[round talon]

and it closed

ima cry

[valid tendon]

what do the answers say if you can get them

we can prepare you for these in the future

[round talon]

it closed

[valid tendon]

maybe

oh it doesnt reveal ans?

[round talon]

it does

but it closed

[turbid ridge]

what the answer then

say

[round talon]

if i view it i can't fix my grade

[turbid ridge]

oh

[round talon]

ima have to use a late pass

oml

bruuuuuuuuuuuu

my life

[valid tendon]

i had a thought that the smaller circle, if spun once, spins the big wheel too

but like

idk how does that work

[round talon]

ima jus cry

@valid tendon

are u here?

[valid tendon]

yea

although i cant solve the problem sadly

[round talon]

also we are using pythagreom identidty

[round talon]

so who can help me?

[turbid ridge]

him

[valid tendon]

whos him

[rich vessel]

aight then where we at

[valid tendon]

we have no idea what the gears have to do with anything

[rich vessel]

well its gears that cyclist rotates so it has everything to do with it

[round talon]

it's a diagram

is all i can say

[rich vessel]

we are finding inch per min speed rn ?

what are we finding and how much do we already have 👀

[valid tendon]

basically how much the big wheel rotates i guess

the main thing here is what is the relationship between the gears and wheel

[rich vessel]

so the big wheel will rotate with rpm of the rear gear

the back gear has radius 4 inchs, front gear 7

so back gear will have greater rpm

[rich vessel]

1 rotation of front gear would move the chain by 2 pi 7

[round talon]

yes

[rich vessel]

1 rotation of back gear is 2 pi 4

[round talon]

also

it's a new problem now

[rich vessel]

so per front gear rotation we would have 7/4 back gear rotation

[rich vessel]

👀

[round talon]

i tried

fr

[rich vessel]

how did the problem change ☠️

[valid tendon]

timed out

[round talon]

yup

[rich vessel]

ohh

[valid tendon]

and used a late slip i think

[rich vessel]

okie then, lets start new one

front is 6 inch, back is 4 inch, 180 RPM and 20 inch diameter for wheel

6/4 rotation of back gear per rotation of front gear

[sonic pelican]

if i'm not mistaken, the rpm transfers through the gear and chain

[rich vessel]

yee

[round talon]

another person in here?

[sonic pelican]

so you can just do v = rw on the wheel

[round talon]

yup

[valid tendon]

the smart people have arrived

[rich vessel]

yee

[round talon]

where were you when i needed you

[sonic pelican]

sleeping

[round talon]

i have a 100 percent in the class and now a 94 percent

[turbid ridge]

i woke them 💯

[round talon]

idk how

[sonic pelican]

oh no

[round talon]

why is college like this

[sonic pelican]

so did you figure this out

[round talon]

no

it's a new problem

[sonic pelican]

ok so what's the angular speed

in radians per minute

[round talon]

i think it's 360 pi

per minute

[sonic pelican]

yes

so then use v = rw and should be done

unit conversion moment for #2

[rich vessel]

hmm 360 pi per min would be for front pedal

the back gear is smaller

[sonic pelican]

why did you say yes to this

you're right, i'm wrong

[rich vessel]

it is transfering from there tho

[sonic pelican]

agh, you have to actually find the speed that the chain moves, so it's a bunch more steps

[rich vessel]

just not same amound

[round talon]

im tired

[rich vessel]

oo nah we are just 1 step away

[round talon]

can you slide me the answer :C

[sonic pelican]

multiply by radius ratio or something idk

[rich vessel]

yup

[round talon]

i have about 4 more different projects

[rich vessel]

6/4

[round talon]

before i have to do the psat

at 6:50 am

[sonic pelican]

oh psat is fun

[round talon]

and than a quiz

than another assingment

my life

is going down hill

[rich vessel]

okie @round talon 360 pi / min is front gear, gotta find back gear 👍

how much is back gear rotating per front gear rotation 👀

[round talon]

i found that :C

u find it

[rich vessel]

Ooo

[rich vessel]

well I know its 540pi, but you gotta find it 🥲

[rich vessel]

now you can use v = rw here, but make sure you know how we got here

[round talon]

bro i have to do this

than this

than this

[rich vessel]

doing less questions but understanding them >>>>>> doing more questions but not understanding them

[rich vessel]

here you can apply v = rw tho

[round talon]

i already took a hit trying to understand it

and look at my grade

all day

doing assingments

after assingments

studying after studying

[rich vessel]

hmmm

[round talon]

and all i wanted was someone to slide

than

explain

[sonic pelican]

someone to what?

[round talon]

-_-

slide the anwser

[rich vessel]

I won't give straight answer ☠️

I can tell you the steps

guide you there 🤷

[round talon]

that's the thing

it takes yall 40 minutes to explain

bruuuuu

[round talon]

bro am i wrong

not even 40

[rich vessel]

well I just came ☠️

[round talon]

@turbid ridge

where did u go

u aint even helped :C

[rich vessel]

calm calm

[round talon]

bro had to call support

[rich vessel]

☠️

[round talon]

and the suport aint supportin

[rich vessel]

no point in discussing this tho

lets get back to the question

[round talon]

alr

[rich vessel]

faster answer for you too like that 🤷

[round talon]

i wanna go to sleep man

[rich vessel]

at 6:50 ☠️

go sleepless like me 💪

[round talon]

it's 12:32

[rich vessel]

ohh

[round talon]

for me

[rich vessel]

ohhhh

[round talon]

that's why

[rich vessel]

you have to submit at 6:50 my bad

[round talon]

the other problem was due 30 minutes ago

[rich vessel]

okie now how much does back gear rotate per front gear rotation

[round talon]

180 degress ig

[rich vessel]

nah

for front gear 1 rotation = 2*pi*6 rotation right ?

in the chain

[round talon]

ye

[rich vessel]

how much is 1 rotation for back gear ?

it has radius of 4 inch

[round talon]

2*pi6

[rich vessel]

oo no no, thats front

back has different radius

[round talon]

-2*pi6

[rich vessel]

☠️

1 rotation for back gear would be 2*pi*4 right ?

[round talon]

yey

[rich vessel]

okie if front is 12 pi and back is 8 pi

how much is 1 rotation of front for back ?

if we rotate front once, chain would travel 12pi right ?

in that 12 pi, how much would back rotate ?

[round talon]

i truly do not know

3/2?

[rich vessel]

yup

you do know

[round talon]

nah

[rich vessel]

okie so for 1 rotation front, back would rotate 3/2

[round talon]

i truly did not know

i used chat gpt

[rich vessel]

question asked for 180 rotations per minute front

[rich vessel]

bruhh ☠️

[round talon]

continue bruda

[rich vessel]

so for 180 rotations front, how many rotations in back ?

[round talon]

are we doing a full 360?

so 360-180

[rich vessel]

yup

no no

[round talon]

u get it

[rich vessel]

we are rotating it full 360, 180 times

[round talon]

and we use that remiander

[rich vessel]

don't look at that 360 rn

forget the 360

[round talon]

we are going 180 back

[rich vessel]

we are rotating the pedal 180 times

when we rotated it 1 time, back gear rotated 3/2 times

when we rotate it 180 times

how much will it rotate ?

[round talon]

180

am i right?

[rich vessel]

nope

[round talon]

or am i lost cause

[rich vessel]

rotating it 1 time in front give 3/2 rotation in back

rotating it 180 times in front

[round talon]

270

[rich vessel]

yes

270

[round talon]

is what chat gpt said

[rich vessel]

bruh turn it off

[round talon]

how do i turn of an ai

[rich vessel]

you were talking about grade, but if you don't understand what would you do when you get these in exams ?

[round talon]

i think

[rich vessel]

the big/small cross you see at top corner

[round talon]

i would look to the left

[rich vessel]

🤦

[round talon]

or bring that cheat sheet

[rich vessel]

this is unitary method

if you got 1 apple in 5 coins, you get 180 apples in 180*5 coins

we are doing that but with rotation

1 rotation gave 3/2 rotation in back

[round talon]

what does apples and coins have to do with the equation

[rich vessel]

180 rotations gave 180*3/2 rotation in back

[rich vessel]

unitary method

[round talon]

alr

alr

continue

[rich vessel]

aight so 270 rotations per minute

how much does wheel travel in 1 rotation ?

[round talon]

in miles?

[rich vessel]

nah miles later

first inches

[round talon]

or feet

[rich vessel]

we will convert to miles in the very end

inches

the ones given in question

[round talon]

it had travel about

....

im not sure tho

[rich vessel]

in 1 rotation

a wheel would travel as much as its circumference is

[round talon]

18-

180

[rich vessel]

how much is its circum ference 👀

[rich vessel]

no more angle

we want inches

[round talon]

im to dumb for that

[rich vessel]

and in 1 rotation wheel travels 360 degrees not 180

[rich vessel]

thats circumference of a wheel ?

a circle ?

[round talon]

ok

[rich vessel]

what is it 👀

[round talon]

360 :0

[rich vessel]

circumference of a wheel ?

[round talon]

revolution?

[rich vessel]

no no, we want circumference atm

perimeter

[round talon]

in/min

[rich vessel]

[round talon]

im so confused

i swear to god

i am not trying to be a troll

[rich vessel]

what does circumference of a circle mean ?

[rich vessel]

😂

[round talon]

the entire of a circle

[rich vessel]

what about the entire circle tho 👀

[round talon]

i think

it rad-

i

[rich vessel]

what does 2pi r mean 👀

what do you find by using it ?

[round talon]

the amount it rotates

[rich vessel]

okie, thats what we wanna find

also

2 pi r means circumference of a circle

[round talon]

oh

ok

[rich vessel]

find out how much it rotates in 1 rotation

the big wheel

[round talon]

2 pi 1/2

2pi r 1/2*

worng

[rich vessel]

why 1/2 ?

also put values inside

we need the value

[round talon]

idk

[rich vessel]

whats r ?

and why 1/2 ?

[round talon]

idk

i truly do not know what i am doing

[rich vessel]

everything you write has to have a reason

[rich vessel]

well just find how much the wheel rotates

moves while it rotates

[round talon]

alr

if it pedals 180 rpm

and the bicycle with a 20 in--diameter wheel

[rich vessel]

the wheel is rotating at 270 rpm now

[round talon]

270

per minute?

[rich vessel]

yup

270 rotations

[round talon]

so

270 x 5280 x

forgot the last one

[rich vessel]

where did 5280 come from

[round talon]

in a mile

[rich vessel]

we don't want mile atm

inches

[round talon]

and we are probaly gonna look at the a inches

[rich vessel]

no unit conversion

[round talon]

wich is 12

in

for 1 feet

[rich vessel]

no conversions yet

keep it in inches

convert at the end

[round talon]

1 in

[rich vessel]

1 inch ?

rotation ?

[round talon]

if 1 in/min = 270 / 5280 x 12 then mph??

[rich vessel]

where did 5280 come from again

its not 1in/min

[round talon]

what am i doing

[rich vessel]

same question exactly

you are supposed to find

if something is rotating x times

[round talon]

yup

[rich vessel]

and has diameter 20 inches

[round talon]

yup

[rich vessel]

how much does it move

diameter 20 inches

[round talon]

1 feet and .93-95 feet

[rich vessel]

☠️

why feet ??

give answer in inches

[round talon]

inches

i mean

1 in and 2/3

[rich vessel]

1.93 - 95 inches ??

[round talon]

no

am i dum

[rich vessel]

bruh I gtg for lunch now

[round talon]

just say

it

noo

please

i knew it

i am dumb

ima cry

i wasn't even helped

please

don't go

help me solve this problem

[rich vessel]

@turbid ridge now you take over, you know the wheel is rotating 270 times per minute

[round talon]

i will stop playing around

[rich vessel]

and turn of chat gpt

but even then I gotta go for lunch

[rich vessel]

and it has radius of 10 inches

[turbid ridge]

akki continue helping him i cant

[rich vessel]

I gotta go for lunch

[turbid ridge]

akki do it for hotw

[round talon]

ain't no way bro was still watching us

[rich vessel]

I can't become hotw yet

[rich vessel]

he saw each and every bit of it

[turbid ridge]

dont worry help him

idk whats going om

[rich vessel]

a wheel is rotating

270 times

per minute

[round talon]

yup

[rich vessel]

and has radius 10 inches

[round talon]

yup

[rich vessel]

find how much it travels per minute

and then find how much it gravels in miles per hour

:D

now bai baiiii , @turbid ridge I fr am going for lunch/brunch

[turbid ridge]

wait confirm this akki

am i supposed to just use the fact it travels the length of its circumference per revolution

[rich vessel]

yes

[turbid ridge]

ok

now i can help

[round talon]

16in/rotation

[turbid ridge]

no

umm

so

per rotation, it travels the length of its circumference

[round talon]

2 * pi * 10 in???

aint that jus 62 inches

[turbid ridge]

yes

[turbid ridge]

no

[round talon]

convert that too

62.83

to be exact

[turbid ridge]

yeah 62.83

[round talon]

so than

it's

16

963.1 inches/minute

correct?

[turbid ridge]

wait what no

its just 62.83 in\revolution

[round talon]

than you multiply it by 270

or do you not?

bro @rich vessel

he is a lost cause

come backk

[turbid ridge]

and there are 270 revolution per minute
so 16964.1 in/min

[round talon]

[turbid ridge]

yeah

you do

[round talon]

so

thats our in/min for the first part right?

[turbid ridge]

yeah

[round talon]

than how do we get our mph

[turbid ridge]

okay how many inches in a mile?

[round talon]

12

wait

if its for feetr

than you do 12 times 5620

[turbid ridge]

5280 feet, and 12 inch per feet

[round talon]

to get a mile

[turbid ridge]

5280*

[round talon]

mb

[turbid ridge]

yh

so

[round talon]

but u get the idea

[turbid ridge]

1 mile = 12 times 5280 inch

[round talon]

yup

[turbid ridge]

1 hour = 60 minutes

[round talon]

yup

[turbid ridge]

from this we can say that 1/63360 miles = 1 inch

[round talon]

yes sir

[turbid ridge]

from this we can say that 1/60 hour = 1minute

so 1 inch/minute = $\frac{\frac{1}{63360} \text{ mile}}{\frac{1}{60} \text{ hour}}}$

[round talon]

um

[sinful pine]

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

[turbid ridge]

um wait

[round talon]

...

[turbid ridge]

this

because 1 inch = 1/63360 miles

remember?

[round talon]

yu

[turbid ridge]

we can simplify this a little using proeprties of fractions

$\frac{60}{63360}$ mph = 1 inch/min = $\frac{6}{6336}$ mph

[round talon]

1056

[sinful pine]

wolfqz

[turbid ridge]

wym

[round talon]

nvm

[turbid ridge]

it simplifies to 1/1056 yes

so now we know that 1 inch/min = $\frac{1}{1056}$ mph

[sinful pine]

wolfqz

[turbid ridge]

so 16964.1 in/min = ?

[round talon]

so 1 something?

or do we divide

16,964.1 in/min by 12

[turbid ridge]

16964.1/1056

[round talon]

am i on the right track?

[turbid ridge]

will convert it to mph

[round talon]

oh

16.06

[turbid ridge]

ys

[round talon]

so the first anwser is 16964,.1

and the second is

[narrow lotus]

610 msgs

[round talon]

16.06?

[turbid ridge]

yeah

[round talon]

that took forever bru

can u help me with another thing tho?

[turbid ridge]

do u think i will be able to

[round talon]

lol

[turbid ridge]

send the question akki will do it if i cant

[round talon]

i sent it

and this

i would perfer if someone would help me on the secon one

[rich vessel]

Well both answers you guys got were right

I just came back

[rich vessel]

You will be able to do this one

Too

[rich vessel]

SinG done ?

[round talon]

huh

[rich vessel]

1st one

It asks for SinG

Did you find that ?

[round talon]

no

is it 1

[rich vessel]

Hmm ok

Nope

Sooo in a circle

Radius say r

Then coordinates of points are (rcos theta, rsin theta)

[round talon]

yup

[rich vessel]

I mean rcos theya

And r sin theta

[rich vessel]

Now what differentiates a unit circle from a normal circle ?

Whats special about unit circle ?

[round talon]

i think it's the midpoints and intersections

and the quadrants

[rich vessel]

Nah

Any random circle at origin would have same midpoint, same quadrants

A unit circle is special because it is a circle with radius 1

[round talon]

yea

oh that too

[rich vessel]

Now that you know it's radius

[rich vessel]

And you know that it's points are

Then you can find the answer 👀

[round talon]

a and b

right

[rich vessel]

yup

and you know r = 1

[round talon]

yea

[rich vessel]

solve from this

[round talon]

r cant be bigger than 0-1

[rich vessel]

tell me whats cos and whats sin

[rich vessel]

nope, r has to be 1

only if r is 1

then its a unit circle

[round talon]

oh ok

[rich vessel]

then tell me whats sinG

[round talon]

1/2

[rich vessel]

what

[round talon]

or

[rich vessel]

ok @round talon whatever you say from now on, you must have a reason behind it

[round talon]

sqrt 3/2

[rich vessel]

no random numbers

[rich vessel]

why ?

did I specify G to be 60 ?

[round talon]

no

so is it sqrt 3/2, 1/2

[rich vessel]

why ?

[round talon]

i do not know

[rich vessel]

why is it those 2 ?

[rich vessel]

everything you say from now on, you must have a reason

otherwise I am going

ok ?

[round talon]

ookkkk

[rich vessel]

you know that in a circle

at any angle x

the points lying on circle would be (rcosx,rsinx)

right ?

[round talon]

yea

[rich vessel]

now at what angle is the point in our question ?

[round talon]

90 degrees

am i wrong

[rich vessel]

where

yes

where why ?

read the question again

what is it asking ?

[round talon]

read it

[rich vessel]

what angle is the point at ?

[round talon]

30 to 45 degree

[rich vessel]

bruh

where is it given ?

that its 30-45 degrees ?

[round talon]

i coudn't tell

it dosn't say

so do we just gom with 90?

[rich vessel]

nope

did you actually read your question ?

what does the first line of question say ?

[round talon]

Consider the angle G shown in the unit circle below. The angle is in standard position with its vertex at the origin,

[rich vessel]

what is the angle ?

G

G is the angle

[round talon]

im afraid

if i this wrong

0

[rich vessel]

yes it is wrong

angle is G

no numeric value

if your question doesn't give you numbers

don't put in numbers

[round talon]

ok

[rich vessel]

until you question doesn't specify it, don't go around saying 30-45 90 0

[rich vessel]

now what are the coordinates ?

[round talon]

ok

[rich vessel]

at that angle ?

[round talon]

it dosn't specify

[rich vessel]

not in numbers

but it does give the coordinates

[round talon]

1

[rich vessel]

wha

why 1 ?

[round talon]

woudn't that be the number

[rich vessel]

nope

no numbers yet

also

[round talon]

cause it's on the mid line

of intersection

[rich vessel]

coordinates would be (x,y) right ?

[round talon]

on a circle

yes

[rich vessel]

how is 1 your coordinate ??

[round talon]

it isn't

we don't know

[rich vessel]

what are the coordinates ?

[round talon]

it dosn't have it

[rich vessel]

and at what angle are they ?

[rich vessel]

(a,b) are the coordinates

[round talon]

oh

i wanna say 9

...

0

[rich vessel]

bruh

[round talon]

but i am wrong

[rich vessel]

BRUHHH

why is it 90 ???

did question say 90 anywhere ?

[round talon]

no

[rich vessel]

why 90 then ?

its at G angle 😭

now any in a circle coordinates of a point at angle x are ?

[round talon]

it dosn't say

[rich vessel]

it says in 1st line

that angle is G

first sentence

[rich vessel]

and I told you this twice already

[round talon]

standard position

[rich vessel]

I don't want value of it 😭

just G

G angle

thats enough

no more, no 90

[round talon]

we don't knoooow

[rich vessel]

no 0 no 30 no 45

[rich vessel]

just say its G

[round talon]

its g

[rich vessel]

don't throw random numbers

[rich vessel]

now tell me this

[round talon]

wait

cos x

sin x

[rich vessel]

yes

[round talon]

right?

[rich vessel]

so what are coordinates at angle G ?

if they were that at angle x

[round talon]

1,0

g=0

[rich vessel]

why

[rich vessel]

where is that given ?

[round talon]

im looking at the angel

and it's orgin is 0

[rich vessel]

🤦

every angle's origin is 0

we don't want at origin

we want coordinates at angle G

[round talon]

we know it's in qudrant 1

a and b are on the midline

so then

[rich vessel]

(a,b) are the coordinates

[round talon]

yea

is what i ment

[rich vessel]

if coordinates at angle x were (cosx,sinx)

what are coordinates at angle g ?

[round talon]

cos g sin g

[rich vessel]

(a,b) = (cosg,sing) ?

[round talon]

yea

[rich vessel]

what are 1st 2 questions asking you to find ?

[round talon]

find the values

[rich vessel]

of ?

[round talon]

a and b

and explain

[rich vessel]

🤦

have you read your question ???

[round talon]

vertex at the origin, one side along the positive x-axis, and its other side intersects the circle at the coordinate point (a , b).

first part

[round talon]

second part

[rich vessel]

it asks you to find

[round talon]

yea

[rich vessel]

sin(G_

and give reasoning

then cos(G)

with reasoning

[round talon]

alr

and how do i do that

[rich vessel]

bruhhh

[rich vessel]

what did we find here ??

[round talon]

cordinates

for a and b

[rich vessel]

if coordinates are equal

cosG = a

sinG = b

[round talon]

and sin

yu[

[rich vessel]

how do you do that ?

[round talon]

idk

[rich vessel]

how do you do what ?

[round talon]

im so confused

[rich vessel]

I am confused as to what you are doing 😭

[rich vessel]

how do you do what ????

[rich vessel]

what did you find here ???

[round talon]

forget that part

i was gonna say

sin (g + a pi)

cos (g + b pi/2)

[rich vessel]

wha

[round talon]

since it makes sense

[rich vessel]

oh

does that mean, you can solve further questions ?

[round talon]

maybe

[rich vessel]

aight then

[round talon]

so sin ( g - a pi/2?)

[rich vessel]

you know sin(a-b) formula ?

[round talon]

no

[rich vessel]

sinacosb - sinbcosa

@round talon put those values in this

[round talon]

sin(A−B)=sinAcosB−cosAsinB

bro fr