Question

find rectangular coordinates of (-7, 5 pi/2)

Answer 1

\[(-7,\frac{5\pi}{2}) = (r,\theta)\]\[x=r \cos \theta\]\[y=r \sin \theta\]

Answer 2

I got rcosx=0, and rsinx=-7

Answer 3

is this correct?

Answer 4

yes

Answer 5

the rectangular coordinate is (x,y), its done

Answer 6

oh sick I think I understand them now thanks