OpenStax, Algebra and Trigonometry 2e §9.5 Solving Trigonometric Equations · Review Exercise 133 · Trigonometry · Identities

Solving Trigonometric Equations · Review Exercise 133

Prove the identity.

$co t x cos (2 x) = - s in (2 x) + co t x$

~8 minWritten answer · compare with the solution

OpenStax, Algebra and Trigonometry 2e · §9.5 Solving Trigonometric Equations · Review Exercise 133

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