Solve the trigonometric equation with a multiple angle: cos(x + pi/4) = 1/2 Example answer: a. {x|x = pi/2 + 2npi, x = 7pi/6 + 2npi}  b. {pi/2, 7pi/6}

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 68E
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Solve the trigonometric equation with a multiple angle: cos(x + pi/4) = 1/2

Example answer: a. {x|x = pi/2 + 2npi, x = 7pi/6 + 2npi} 

b. {pi/2, 7pi/6}

 

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