Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter 6 - Analytic Trigonometry - Section 6.1 The Inverse Sine, Cosine, and Tangent Functions - 6.1 Assess Your Understanding - Page 473: 11

Answer

True.

Work Step by Step

True. In general, use the properties of inverse functions, we have $sin(sin^{-1}x)=x$ and $cos(cos^{-1}x)=x$.
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