Question

How do you convert `(-4,4)` to polar form?

Answer 1

( 4`sqrt`2, 3`pi`/4 )

Explanation:

r = `sqrt` ( x.x + y.y) = 4`sqrt`2
cos (`theta`) = x/r = `-`1/`sqrt`2
sin ( `theta` ) = y/r = 1/`sqrt`2