Precalculus (6th Edition)

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

Chapter 7 - Trigonometric Identities and Equations - Chapter 7 Test Prep - Review Exercises: 98

Answer

$0$

Work Step by Step

$\cos ^{-1}\left( \cos x\right) =x\Rightarrow \cos ^{-1}\left( \cos 0\right) =0$
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