Answer
$\approx 0.8253$
Work Step by Step
Use a calculator in RAD mode then round-off the answer to four decimal places to obtain:
$\cos{0.6} \approx 0.8253$
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: 62
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