Determine the values of ? if 0 ≤ ? ≤ 2? given that cos ? = −0.3178

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section: Chapter Questions
Problem 66RE
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Determine the values of ? if 0 ≤ ? ≤ 2? given that cos ? = −0.3178

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