Chapter 7: Q. 7 (page 500)
Express the product as a sum containing only sines or only cosines.
Short Answer
Expert verified
Chapter 7: Q. 7 (page 500)
Express the product as a sum containing only sines or only cosines.
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sin 285sin 75
In Problems 9–36, find the exact value of each expression.
Show thatand use it to find.
Use the fact that
to find.
.
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