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3.6 Product-to-Sum and Sum-to- Product Formulas Warm-up (IN) 1.Find the exact value of: Learning Objective: To be able to properly identify which product-to-sum.

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Presentation on theme: "3.6 Product-to-Sum and Sum-to- Product Formulas Warm-up (IN) 1.Find the exact value of: Learning Objective: To be able to properly identify which product-to-sum."— Presentation transcript:

1 3.6 Product-to-Sum and Sum-to- Product Formulas Warm-up (IN) 1.Find the exact value of: Learning Objective: To be able to properly identify which product-to-sum formula is appropriate to solve a problem and to understand and develop methods regarding how to properly simplify trigonometric expressions.

2 NOTES And the formulas are…. Product- to-Sum You need to KNOW these!!

3 Sum-to- Product

4 Ex 1 – Express the following products as sums with sines and cosines

5 Ex 2 – Express each sum or difference as a product with sines and cosines

6 HW – pg. 267 #1-5,11-14,19,20,24,27 Out – Explain in words what we did in Ex 1-a. Summary – This lesson is… Don’t forget about POW!!

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