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OpenStax, Algebra and Trigonometry 2e §9.5 Solving Trigonometric Equations · Exercise 91 · Trigonometry · Identities

Solving Trigonometric Equations · Exercise 91

Find all solutions exactly to the equations on the interval $[0, 2 π) .$

$2 co s^{2} x - s i n^{2} x - cos x - 5 = 0$

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OpenStax, Algebra and Trigonometry 2e · §9.5 Solving Trigonometric Equations · Exercise 91

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