Answer
$\frac{2}{1-cos^2(v)}$
Work Step by Step
$\frac{1}{1-cos(v)}+\frac{1}{1+cos(v)}=\frac{1+cos(v)+1-cos(v)}{(1-cos(v))(1+cos(v))}=\frac{2}{1-cos^2(v)}$
Precalculus (10th Edition)
by Sullivan, Michael
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 476: 16
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