In Exercises 7380, use the product-to-sum formulas to write the product as a sum or

Chapter 6, Problem 77

(choose chapter or problem)

In Exercises 73–80, use the product-to-sum formulas to write the product as a sum or difference.

\(5 \sin \theta \sin 3 \theta\)

Text Transcription:

5 sin theta sin 3 theta

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