OpenStax, Algebra and Trigonometry 2e §9.5 Solving Trigonometric Equations · Exercise 44 · Trigonometry · Identities

Solving Trigonometric Equations · Exercise 44

Solve exactly on the interval $[0, 2 π) .$ Use the quadratic formula if the equations do not factor.

$5 co s^{2} x + 3 cos x - 1 = 0$

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OpenStax, Algebra and Trigonometry 2e · §9.5 Solving Trigonometric Equations · Exercise 44

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