limx→1(x^2-2x+1/(x^2-1)的值

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/04 21:53:30
limx→1(x^2-2x+1/(x^2-1)的值

limx→1(x^2-2x+1/(x^2-1)的值
limx→1(x^2-2x+1/(x^2-1)的值

limx→1(x^2-2x+1/(x^2-1)的值
limx→1(x^2-2x+1/(x^2-1)=limx→1[(x-1)^2/(x+1)(x-1)]=limx→1](x-1)/(x+1)]=0

运用洛必达法则 对上下两边求导 limx→1(x^2-2x+1/(x^2-1)=0