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Find the exact value of cot-1(1). please step by step :)

Mathematics
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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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Other answers:

cotangent
Yes, but what is cotangent?
sin/tan
cos/sin
Its cos/sin
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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.
Allright, So you are given cot^-1(1) The cot^(-1) means to find the angle where cot is 1 Cot is also (cos/sin) 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 If you put 2pi/pi/2 you get pi/4 So cos^-1(1) is pi/4
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
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sin=1 at pi/2
Shhh..dont write.
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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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