Chapter 9 · Algebra and Trig
Trigonometric Identities and Equations
Verifying identities, the sum and difference formulas, double-angle, half-angle and reduction formulas, product-to-sum, solving trigonometric equations and modeling with them.
234 of the 440 problems this chapter sets.
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Algebra and Trigonometry 2e: Access for free at https://openstax.org/books/algebra-and-trigonometry-2e/pages/1-introduction-to-prerequisites