4. Find all solutions in radians. a) cos(50) = -1 IN 2

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 48E
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4. Find all solutions in radians.
a) cos(50) = -
-1/2
b) 2 tan = 1+tan
c) 2sin² (20) -√3 sin (20) = 0
Transcribed Image Text:4. Find all solutions in radians. a) cos(50) = - -1/2 b) 2 tan = 1+tan c) 2sin² (20) -√3 sin (20) = 0
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