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OpenStudy (anonymous):
Solve on [0, 360]: sin(2x) = 3cos^2(x)
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OpenStudy (anonymous):
Have you done any work on this so far ??
OpenStudy (anonymous):
i made sin(2x) into 2sinxcosx
OpenStudy (anonymous):
and then moved everything to one side so that 3cos^2x-2sinxcosx=0 was the equation
OpenStudy (anonymous):
then i factored out cosx and got cosx(3cosx-2sinx)=0
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