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3.5: Sum to Product and Triple Angle Formulas

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3: Trigonometric Identities

3.5: Sum to Product and Triple Angle Formulas

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3.5.1: Sum to Product Formulas for Sine and Cosine
3.5.2: Product to Sum Formulas for Sine and Cosine
3.5.3: Triple-Angle Formulas and Linear Combinations

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- 3.4.6: Trigonometric Equations Using Half Angle Formulas
- 3.5.1: Sum to Product Formulas for Sine and Cosine

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