Answer
1
Work Step by Step
sec is the reciprocal of cos.
sec t = $\frac{1}{cos t}$.
so sec 2.3 = $\frac{1}{cos 2.3}$.
cos 2.3 sec 2.3=cos 2.3$\frac{1}{cos 2.3}$ = 1.
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 4 - Section 4.2 - Trigonometric Functions: The Unit Circle - Exercise Set - Page 548: 34
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