What point on the unit circle corresponds to t=(5π)/3 ?

Answer 1

(x, y) = (cos A, sin A), where A is the measurement of the angle.

In this case, A=5π/3.

Now, you can plug A into (cos A, sin A) to find the x and y coordinates

Just make sure to set your calculator to radians, since 5π/3 is in radians.

cos((5pi)/3), sin((5pi/3) = 1/2, -sqrt(3)/2