急求!!!!lim(x3-3x+2)⼀(x4-4x+3)在x趋于1的时候的极限,要简单的过程

2024-12-25 17:44:34
推荐回答(1个)
回答1:

lim(x→1)(x3-3x+2)/(x4-4x+3)(0/0用洛必达法则)
=lim(x→1)(3x^2-3)/(4x^3-4)(0/0用洛必达法则)
=lim(x→1)(6x)/(12x^2)
=1/2