Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 14 - The Trigonometric Functions - 14-1 Trigonometric Identities - Practice and Problem-Solving Exercises - Page 910: 80



Work Step by Step

The coterminal angle must be the original angle + or - some integer multiple of $360^{\circ}$. For this problem, $$-225^{\circ}+360^{\circ}=135^{\circ}$$ gives a coterminal angle between $0^{\circ}$ and $360^{\circ}$.
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.