Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.2: Trigonometric Equations
Problem 69E
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Question
Find the function values in Exercises 47–50.
47. cos 2pai/8 48. cos2 5pai/ 12
49. sin2 pai/12 50.sin2 3pai/8
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