Question #b2b3e
2 Answers
Aug 23, 2017
Explanation:
We can add multiples of
(-5pi)/2+2pi=-pi/2
This is located on the
The point on the unit circle at this location is
sin((-5pi)/2)=sin(-pi/2)=-1
Aug 23, 2017
-1
Explanation:
sin
= -sin
= - sin