In Exercises 119122, use the product-to-sum formulas to write the product as a sum or
Chapter 6, Problem 120(choose chapter or problem)
In Exercises 119–122, use the product-to-sum formulas to write the product as a sum or difference.
\(4 \sin 15^{\circ} \sin 45^{\circ}\)
Text Transcription:
4 sin 15 degrees sin 45 degrees
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