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Mathematics 28 Online
OpenStudy (anonymous):

Factor: 2sin(x)cos(x) = cos(2x) Show steps.

OpenStudy (anonymous):

let 2sinxcox =sin2x, then u will have sin2x=cos2x, divide by cos2x both side, then u have tan2x=1,then I dn't knw wat..lol

OpenStudy (alexwee123):

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