lim(x→π/3)sin(x-π/3)/(1-2cosx)

问题描述:

lim(x→π/3)sin(x-π/3)/(1-2cosx)

lim(x→π/3)sin(x-π/3)/(1-2cosx)=lim(x→π/3)cos(x-π/3)/(0+2sinx)=(3^0.5)/3