m‖n,则
f(x)*1=cosx(√3sinx+cosx)
f(x)=(√3/2)sin2x+(1/2)(1+cos2x)
=(1/2)+sin(2x+π/6)
∴周期T=2π/2=π
对称轴是2x+π/6=π/2+kπ,k∈Z,
x=π/6+kπ,k∈Z
若对称轴x0∈(0,1),则
x0=π/6
完毕