Algebra 2 Common Core

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

Chapter 14 - Trigonometric Identities and Equations - 14-1 Trigonometric Identities - Practice and Problem-Solving Exercises - Page 908: 26



Work Step by Step

Use the Pythagorean Identity $$1+\tan^{2}\theta=\sec^{2}\theta$$ to obtain $$\sec^{2}\theta-\tan^{2}\theta=(1+\tan^{2}\theta) - \tan^{2}\theta=1.$$
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.