Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 1 - Trigonometric Functions - Section 1.1 Angles - 1.1 Exercises: 116


180$^{\circ}$ between 2nd and 3rd quadrant.

Work Step by Step

1. It is the same case as in 115 exercise. 180$^{\circ}$ cannot be in either quadrant. 180$^{\circ}$+360$^{\circ}$= 540$^{\circ}$ 180$^{\circ}$-360$^{\circ}$=-180$^{\circ}$ Co-terminal angles always in the same quadrant as original angle.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.