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OpenStax, Algebra and Trigonometry 2e §9.1 Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Try It 4 · Trigonometry · Identities

Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Try It 4

Rewrite the trigonometric expression using the difference of squares: $25 - 9 s i n^{2} θ .$

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OpenStax, Algebra and Trigonometry 2e · §9.1 Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Try It 4

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