Trigonometry (11th Edition) Clone

Published by Pearson
ISBN 10: 978-0-13-421743-7
ISBN 13: 978-0-13421-743-7

Chapter 1 - Trigonometric Functions - Section 1.1 Angles - 1.1 Exercises - Page 9: 97

Answer

450°, -270°

Work Step by Step

1. To find the positive coterminal angle you just need to add 360. 90° +360° = 450° 2. To find the negative coterminal angle you just need to subtract 360 90° -360° = -270° If you want to find more coterminal angles you just need to add or subtract more 360, depending on the sign.
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.