Question

Given that Cos of theta= -0.866, where
`(\pi )/(2)` < theta < π, find Sin of Theta

Answer 1

sin(theta) = 0.5

tan(theta) = -0.577

Explanation:

Cos theta = -0.866

Theta = 2.617943073

(Because in the second quadrant)

sin(theta) = 0.5

tan(theta) = -0.577