Answer
Please see below.
Work Step by Step
Please note that the function $f(x)=\frac{5x^2}{x^2-25}$ is not defined for $x= \pm 5$.
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 5 - Section 5.1 - Verifying Trigonometric Identities - Exercise Set - Page 660: 98
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