Solve on the interval 0 to 2pi

admin October 31, 2017

7.35K viewsNovember 1, 2017trigonometry

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admin 60 November 1, 2017 0 Comments

$cos(2\theta)+cos(4\theta) = 0$

$cos^2\theta + 2sin\theta cos\theta - sin^2\theta = 0$