Answer
$\cos 82.9^{\circ}$ = 0.1236
Work Step by Step
Using calculator in degree mode-
82.9 → $\cos$ →→ 0.1236014767
i.e. $\cos 82.9^{\circ}$ = 0.1236014767
Rounding it to four places past the decimal point-
$\cos 82.9^{\circ}$ = 0.1236
Trigonometry 7th Edition
by McKeague, Charles P.; Turner, Mark D.
Published by
Cengage Learning
ISBN 10:
1111826854
ISBN 13:
978-1-11182-685-7
Chapter 2 - Section 2.2 - Calculators and Trigonometric Functions of an Acute Angle - 2.2 Problem Set - Page 71: 34
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