Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 7 - Analytic Trigonometry - 7.4 Trigonometric Identities - 7.4 Assess Your Understanding - Page 477: 80

Answer

See below.

Work Step by Step

$LHS=\frac{1+tan(v)}{sec(v)}=\frac{1}{sec(v)}+\frac{tan(v)}{sec(v)}=cos(v)+sin(v)=RHS$
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