Answer
$\sec\theta=-\frac{12}{7}$
Work Step by Step
$\sec\theta=\frac{1}{\cos\theta}=\frac{1}{-\frac{7}{12}}=-\frac{12}{7}$
Trigonometry (10th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671775
ISBN 13:
978-0-32167-177-6
Chapter 1 - Test - Page 44: 21
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