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OpenStax, Algebra and Trigonometry 2e §9.1 Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Exercise 39 · Trigonometry · Identities

Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Exercise 39

Prove or disprove the identity.

$\frac{1 + s in x}{cos x} = \frac{cos x}{1 + s in ( - x )}$

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OpenStax, Algebra and Trigonometry 2e · §9.1 Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Exercise 39

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