OpenStax Algebra & Trigonometry Recorded Lectures and Notes for Precalculus


9.1 - Solving Trigonometric Equations with Identities


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9.1 Solving Trigonometric Equations with Identities


9.2 - Sum & Difference Identities


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9.2 Sum and Difference Identities


9.3 - Double-Angle, Half-Angle, and Reduction Formulas


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9.3 Double angle, Half angle, and Reduction Formulas


9.4 - Sum-to-Product and Product-to-Sum


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9.4 Sum to Product and Product to Sum Functions


9.5 - Solving Trigonometric Equations


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9.5 Trigonometric Equations


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