y=sin(2x-π/3)+根号3 cos2x
=sin2xcosπ/3-cos2xsinπ/3+2sinπ/3 cos2x
=sin2xcosπ/3+cos2xsinπ/3
=sin(2x+π/3)
1.振幅=1
2、周期=2π/2=π
3、函数的图像可以由y=sinx(x∈R）的图像经过横向缩小1/2,再向左移动π/6得到
已知函数y=sin(2x-π/3)+根号3 cos2x
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