Using the unit circle, find the exact value of cos 150° and sin of 150°. (1 point)
Cos(150) = -1/2 ; sin(150) = Square root3/2
Cos(150) = -Square root3/2 ; sin(150) = 1/2
Cos(150) = Square root3/2 ; sin(150) = -1/2
Cos(150) = 1/2 ; sin(150) = - Square root3/2