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OpenStudy (anonymous):
Rewrite as a sum : 2sin 8x cos 3x
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OpenStudy (anonymous):
Use the product-to-sum identity: sinxcosx = 1/2[sin(x+y)+sin(x-y).
OpenStudy (anonymous):
1[sin(8x+3x)+sin(8x-5x)]
OpenStudy (anonymous):
sin(11x)+sin(3x)
OpenStudy (anonymous):
Thank you !!
OpenStudy (anonymous):
:)
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