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what is cot using sin and cos?

wait wat? explain... please

Do you know what cot means?

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cotangent

Yes, but what is cotangent?

sin/tan

cos/sin

Its cos/sin

|dw:1352671301171:dw|

idk wat to do next...

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pi

No.

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pi/2

No, what is cos in general?

Do you still need help with this?

yess

cos is x
sin is y

wow ok im sorry u have to do the basic with me

|dw:1352671946433:dw|

ok

i understood that

OK, good.

You can follow @zordoloom, but im not sure what he's doing. So your choice.

how would i get 2pi/pi=4pi

It doesnt equal 4pi. That would equal 2

If you put 2pi/pi/2 you get pi/4

No, you get 1.

and where do i find 1 on the unit circle

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i know its 45degree but idk how?

gimme a sec

like idk how how cos 1 = pi/4 i get how to get it but not how u get thru the unit circle

what are the coordinates of pi/4 on the unit circle?

no how he got this

So if you look at the unit circle, where does cos equal 1?
So cos is 2pi at 1
and sine is pi/2 at 1

cos equals one at 0 and 2pi

then somehow he got 4/p

dont write anything, just read what i write

okkkk

|dw:1352672770099:dw|

sin=1 at pi/2

Shhh..dont write.

|dw:1352672843682:dw|

|dw:1352672885447:dw|

|dw:1352672912951:dw|

ohhhhh

ok i get it

Ok, r u sure?

god ur amazing i would have been here for a few hours

yes i ddint multiply them

thanks, do you want me to give another example..so u can see if u get it right?

um ya an easy 1 please

OK, gimme a sec

\[ \cot^{-1} (-1)=?\]

pi

No.

3pi/4

Yes!

question is cot always on the 3rd quadrant?

No, the original question you asked, the answer was pi/4 (thats in the 1st quadrant)

but thats for cos

not cot

cos=1st
cot=3rd

No, all quadrants apply for any trig identity.

oh i know but for those mostly

The answer is still no.

ok thanks :)

Np.

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