Answer
See explanations.
Work Step by Step
Using the Addition Formula, we have
$LHS=sin(\frac{3\pi}{2})cos(x)-cos(\frac{3\pi}{2})sin(x)=-cos(x)-0=-cos(x)=RHS$
Thus, we verified the identify.
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 9 - Section 9.3 - The Parabola - Exercise Set - Page 999: 104
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