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OpenStax, Algebra and Trigonometry 2e §9.1 Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Example 6 · Trigonometry · Identities

Verifying an Identity Using Algebra and Even/Odd Identities

Verify the identity:

$\frac{s i n ^{2} ( - θ ) - co s ^{2} ( - θ )}{s in ( - θ ) - cos ( - θ )} = cos θ - s in θ$

~5 minWritten answer · compare with the solution

OpenStax, Algebra and Trigonometry 2e · §9.1 Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Example 6

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