f(x)=2根号3sinxcosx—cos^2 x+sin^2 x=根号3sin2x-cos2 x=2sin(2x-π/6）则函数f(x)的最小正周期=T=2π/2=π0≤x≤π/2时-1/6π≤2x-π/6≤5π/6则 当2x-π/6 =-1/6π时,f(x)取最小值为-12x-π/6=π/2时,f(x)取最,...