Answer
$\frac{\sqrt3}{2}$
Work Step by Step
Using the calculator in radian mode we get: $\cos{\frac{\pi}{6}}=\frac{\sqrt3}{2}$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 13, Trigonometric Ratios and Functions - 13.2 Define General Angles and Use Radian Measure - 13.2 Exercises - Skill Practice - Page 863: 44
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