A community for students. Sign up today

Here's the question you clicked on:

anonymous 4 years ago Find all angles in 0° ≤ θ ≤ 360° for which cos θ = - 1/2.

• This Question is Closed
1. anonymous

cos is negative in second and third quadrant. So the possible value of $$\theta = 120 \text{ and }240$$

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy