√3cosx-sinx=0
√3/2*cosx-1/2*sinx=0
sinπ/3*cosx-cosπ/3*sinx=0
sin(π/3-x)=0
sin(x-π/3)=0
x-π/3=2kπ或x-π/3=2kπ+π
x=2kπ+π/3或x=2kπ+4π/3