Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 4 - Test - Page 647: 13


a) $ b-a $ b) $\dfrac{a-1}{b}$

Work Step by Step

a) $\sin (- \theta) +\cos (-\theta) =-\sin \theta+\cos \theta $ or, $=-a+b $ or, $=b-a $ b) $\tan (\theta) -\sec (\theta) =\dfrac{\sin \theta}{\cos \theta}-\dfrac{1}{\cos \theta} $ or, $=\dfrac{\sin \theta-1}{\cos \theta}$ or, $=\dfrac{a-1}{b}$
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