Precalculus (6th Edition)

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

Chapter 7 - Trigonometric Identities and Equations - 7.1 Fundamental Identities - 7.1 Exercises - Page 659: 67


$\tan \theta \sin \theta $

Work Step by Step

$sec\theta -\cos \theta =\dfrac {1}{\cos \theta }-\cos \theta =\dfrac {1-\cos ^{2}\theta }{\cos \theta }=\dfrac {\sin ^{2}\theta }{\cos \theta }=\tan \theta \sin \theta $
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