Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 7 - Trigonometric Identities and Equations - 7.1 Fundamental Identities - 7.1 Exercises: 48

Answer

$\pm \dfrac {\sqrt {1-\sin ^{2}x}}{\sin x}$

Work Step by Step

$\cot x=\dfrac {\cos x}{\sin x}=\pm \dfrac {\sqrt {1-\sin ^{2}x}}{\sin x}$
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