Answer
$0.1392$
Work Step by Step
Typing $\cos82$ into a scientific calculator to yield $0.1392$.
Elementary Geometry for College Students (7th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Cengage
ISBN 10:
978-1-337-61408-5
ISBN 13:
978-1-33761-408-5
Chapter 11 - Section 11.2 - The Cosine Ratio and Applications - Exercises - Page 511: 15
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