化简f(x)=(sinx)^2-3^1/2sinxcosx

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化简f(x)=(sinx)^2-3^1/2sinxcosx化简f(x)=(sinx)^2-3^1/2sinxcosx化简f(x)=(sinx)^2-3^1/2sinxcosxf(x)=(1-cos2x

化简f(x)=(sinx)^2-3^1/2sinxcosx
化简f(x)=(sinx)^2-3^1/2sinxcosx

化简f(x)=(sinx)^2-3^1/2sinxcosx
f(x)=(1-cos2x)/2-根号3sin2x/2
=-(根号3sin2x/2+cos2x/2)+1/2
=-sin(2x+π/3)+1/2