SOLUTION: How touse the product-to-sum formulas to write the product as a sum or difference. 4 cos pi/3 sin 5pi/6

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Question 1108021: How touse the product-to-sum formulas to write the product as a sum or difference.
4 cos pi/3 sin 5pi/6
Answer by Collinwilfixyouuprealnice(44) About Me  (Show Source):