Question

another quick trig check

Answer 1

Select the correct point (x, y) on the unit circle that corresponds to t=8π/3.

-1/2, sqrt3/2?

Answer 2

@freckles

Answer 3

oh so basically you want to convert (1,8pi/3) I assume...
r=1 and theta=8pi/3
where x=rcos(theta) and y=rsin(theta)

Answer 4

and yes what you have is right :)

Answer 5

oh goodie, thanks