f（x）=cos（2x+π/3）+sin2x-cos2x+2√3sinxcosx=cos2xcosπ/3-sin2xsinπ/3+sin2x-cos2x+√3sin2x=sin2x-(cos2x-√3sin2x)/2=sin2x-sin(π/6-2x)=2cos[(2x+π/6-2x)/2]*sin[(2x-π/6+2x)/2]=2cos(π/12)sin(2x-π/...