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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