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OpenStudy (anonymous):
1 + cos(12x) = _____. A. 2sin2(6x) B. 2sin2(12x) C. 2cos2(12x) D. 2cos2(6x)
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OpenStudy (anonymous):
\[1+\cos 2\theta=2\cos ^2\theta \]
OpenStudy (midhun.madhu1987):
|dw:1407691172615:dw|
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