sum-to-product-identities-and-product-to-sum-formulas-trig-examples

# Interactive video lesson plan for: Sum to Product Identities and Product to Sum Formulas - Trig Examples

#### Activity overview:

This trigonometry video tutorial explains how to use the sum to product identities and product to sum formulas to evaluate sine and cosine functions. This video contains plenty of trig examples and practice problems for you to work on.

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