Question

Points A, B, and C are plotted on the unit circle.

Which of the coordinates is equal to sin
(4pi/5)

Answer 1

B- y coordinate of point A

Explanation:

checked it

Answer 2

A

Explanation:

sin (4pi/5)

The y value is positive

sin (pi) = 0 and we know pi is at the left side of the unit circle

(4pi/5) is less than pi so it comes before pi on the unit circle