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Use the product-to-sum formulas to write the product as a sum or difference. (Do not simplify your answer.) 8 sin(45) cos(15) Ex Use the product-to-sum formulas to rewrite the product as a sum or difference. sin(x + y) cos(x y) Ex Use the sum-to-product formulas to write the sum or difference as a product. 6 sin 30 + 6 sin 0 XUse the sum-to-product formulas to rewrite the sum or difference as a product. cos x + cos 2x X