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OpenStudy (anonymous):
Use the squared identities to simplify 2sin^2 x cos^2 x. A. 1-cos(4x)/4 B. 1+4cos(2x)+cos(4x)/4 C. 1+cos(4x)/4 D. 1+4cos(2x)-cos(4x)/4
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OpenStudy (raden):
hint : sin^2 x = (1-cos2x)/2 cos^2 x = (1+cos2x)/2
OpenStudy (raden):
well, i want to figure out this : |dw:1361736581722:dw|
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