Question

PLEASE HELP!!!! For what values of θ (in radians) will sinθ = 0?

Answer 1

2 pi, -2 pi, pi, -pi

Explanation:

Draw a unit circle and label the 4 points where it intersects the x/y axis. for example at 0 degrees or 360/-360 degrees the (x,y) or (cosine theta, sine theta) value is (1,0).