Answer
$\approx-1.524$
Work Step by Step
Use a calculator in degree mode and round-off the result to three decimal places to obtain
$\sec(229^{o})=\dfrac{1}{\cos229^{o}}\approx-1.524$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 6 - Trigonometric Functions - Chapter Review - Chapter Test - Page 436: 15
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