Question

The angle θ lies in Quadrant II . cosθ=−2/3 What is tanθ ?

Answer 1

Hope this helps you.

Answer 2

Answer: -1.118

Explanation:

cos θ = -2/3

cosθ= -0.666667

θ =arccos(-0.666667)

θ=113.81

tanθ = tan(113.81) =-1.118

= -√5 / 2