Answer
$\approx1.02$
Work Step by Step
I use a calculator in degree mode and then round the result to two decimal places:
$\sec(10^{o})=\dfrac{1}{\cos(10^{o})}=1.015426612\approx1.02.$
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 - Review Exercises - Page 435: 42
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