Answer
Please see below.
Work Step by Step
We know that the graph of $y=\sin x$ is the graph of $y=\cos x$ horizontally shifted $\frac{\pi }{2}$ units to the right. This point can be verified by the identity $\sin x = \cos (x- \frac{\pi }{2})$.
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 4 - Section 4.5 - Graphs of Sine and Cosine Functions - Exercise Set - Page 598: 95
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