Question

How do you find the coordinates of the terminal points corresponding to the following arc length on the unit circle: -5π/3?

Answer 1

On the trig unit circle:

x of terminal point: `x = cos ((-5pi)/3) = cos ((pi)/3) = 1/2`

y of terminal point: `y = sin ((-5pi)/3) = sin ((pi)/3) = sqrt3/2`