- #1

- 92

- 0

It says convert (-1, pi/8 ) from polar to rectangular coordinate? But there is no pi/8 on the unit circle?

If the'yre on the unit circle just use x=rcosθ and y=rcosθ

another example is for (1, 5pi/2) That doesn't seem to be on the unit circle either. So how can we do these then?