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OpenStudy (anonymous):
HELP!!!! Dx Use the squared identities to simplify 2sin^2 x sin^ 2 x. A. (3-4 cos(2x)-cos(4x)) / 4 B. (3+4cos(2x)-cos(4x)) / 4 C. (3+4cos(2x)+cos(4x)) / 4 D (3-4cos(2x)+cos(4x)) / 4
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OpenStudy (anonymous):
use this identidy:|dw:1336622590745:dw|
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