# 3.14: Product to Sum Formulas for Sine and Cosine

Difficulty Level: At Grade Created by: CK-12
Estimated12 minsto complete
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Practice Product to Sum Formulas for Sine and Cosine

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Estimated12 minsto complete
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Estimated12 minsto complete
%
MEMORY METER
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### Vocabulary Language: English

TermDefinition
Product to Sum Formula A product to sum formula relates the product of two trigonometric functions to the sum of two trigonometric functions.

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