Find all solutions of the equation in the interval [0, 2π). cos2θcosθ-sin2θsinθ = -1 write all solutions in radians.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.2: Trigonometric Equations
Problem 55E
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Find all solutions of the equation in the interval [0, 2π).

cos2θcosθ-sin2θsinθ = -1

write all solutions in radians.

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