Precalculus (6th Edition)

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

Chapter 7 - Trigonometric Identities and Equations - 7.2 Verifying Trigonometric Identities - 7.2 Exercises: 14

Answer

$1+\cot \beta $

Work Step by Step

$\cos \beta \left( sec\beta +csc\beta \right) =\cos \beta sec\beta +\cos \beta csc\beta =1+\dfrac {\cos \beta }{\sin \beta }=1+\cot \beta $
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