Express the product as a sum containing only sines or cosines.-2 sin(5?) sin ?
A. cos(6?) + cos(4?)
B. cos(6?) - cos(4?)
C. cos(7?) - cos(3?)
D. cos(7?) + cos(3?)
Answer: B
Mathematics
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A. True B. False
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Write an equation for the line described. Give your answer in slope-intercept form.m = -4, b = 8
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Mathematics