f(x)=cos(2x-π/3)+2sin^2x-2=cos(2x-π/3)-cos2x-1=sin(2x-π/3)-1函数f（x）的最小正周期T=2π/2=π图像对称轴方程满足2x-π/3=2kπ+π/2 (对称轴即使函数取得最大值时所对应的x直线)即2x=π/3+2kπ+π/2=2kπ+5π...