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 - Page 658: 9


$-\dfrac {3}{4}=-0.75$

Work Step by Step

$\tan \left( -\theta \right) =-\tan \theta =-\dfrac {\sin \theta }{\cos \theta }=-\dfrac {0.6}{0.8}=-\dfrac {3}{4}=-0.75$ (Tangent is odd function)
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