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

Answer

$$1$$

Work Step by Step

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