limx趋向于0负x^2+2x/绝对值x(x+1)等于多少
问题描述:
limx趋向于0负x^2+2x/绝对值x(x+1)等于多少
答
limx趋向于0(x(2-x)/lxllx+1l
x>0
limx趋向于0(x(2-x)/lxllx+1l=2
x