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October 20, 2014

October 20, 2014

Posted by **Katie** on Thursday, April 23, 2009 at 6:31pm.

Solve: sin(3x)-sin(x)=cos(2x)

so far i've gooten to:

sin(x)(2sin(x)cos(x)-1)=cos^2(x)-sin^2(x)

Where would I go from here?

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