Question: In Exercises 1-4, use the sum-to-product formulas to rewrite the sum or difference as a product. 1. sin 5 sin 3 2. sin 3

In Exercises 1-4, use the sum-to-product formulas to rewrite the sum or difference as a product.
1. sin 5Θ − sin 3Θ
2. sin 3Θ + sin Θ
3. cos 6x + cos 2x
4. cos x + cos 4x

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