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Section 7.3 Double-Angle, Half-Angle and Product-Sum Formulas

Section 7.3 Double-Angle, Half-Angle and Product-Sum Formulas. Objectives: To understand and apply the double-angle formula. To understand and apply the half-angle formula. To understand and apply product-sum formula. Class Work . Evaluate csc780 ? Find the exact value of tan165?.

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