Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 5 - Section 5.1 - Verifying Trigonometric Identities - Exercise Set - Page 660: 86

Answer

The graphs appear to coincide.

Work Step by Step

$$\sin x -\sin x \cos ^2x= \sin x (1- \cos ^2 x)= \sin x (\sin ^2x)= \sin ^ 3x$$
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