Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 14 Trigonometric Graphs, Identities, and Equations - Chapter Review - Page 966: 17


$\sec^3 x$

Work Step by Step

Using the given identities: $\sec x\tan^2 x+\sec x=\sec x(\tan^2 x+1)=\sec x \sec^2 x=\sec^3 x$
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