Answer
$5\rightarrow D$
Work Step by Step
$\tan ^{2}x=\dfrac {1}{\cot ^{2}x}\Rightarrow 5\rightarrow D$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 7 - Trigonometric Identities and Equations - Chapter 7 Test Prep - Review Exercises - Page 736: 5
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