Answer
$45.526434^\circ$
Work Step by Step
Given $cos\theta=0.70058013$, we have $\theta = acos(0.70058013)=45.526434^\circ$ in $[0^\circ,90^\circ)$.
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 5 - Trigonometric Functions - 5.3 Trigonometric Functions - 5.3 Exercises - Page 534: 131
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