Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 7 - Trigonometric Identities and Equations - 7.2 Verifying Trigonometric Identities - 7.2 Exercises: 24

Answer

$\left( sec\theta -1\right) \left( sec+1\right) $

Work Step by Step

$sec^{2}\theta -1=\left( sec\theta -1\right) \left( sec+1\right) $
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