发布网友 发布时间:2024-10-07 21:31
共2个回答
热心网友 时间:2024-10-25 13:17
这个是0 、热心网友 时间:2024-10-25 13:21
函数应该这样吧:1/(x+1)-3/(x^3+1) lim [1/(x+1)-3/(x^3+1)] = lim [ (x^3-3x-2)/(x+1)(x^3+1)] =lim ( 3x^2-3)/[(x^3+1)+(x+1)3x^2](罗比达) =lim [( 3x^2-3)/(4x^3+3x^2+1)](罗比达) =lim[6x/(12x^2+6x)] =-6/6=-1热心网友 时间:2024-10-25 13:17
这个是0 、热心网友 时间:2024-10-25 13:23
函数应该这样吧:1/(x+1)-3/(x^3+1) lim [1/(x+1)-3/(x^3+1)] = lim [ (x^3-3x-2)/(x+1)(x^3+1)] =lim ( 3x^2-3)/[(x^3+1)+(x+1)3x^2](罗比达) =lim [( 3x^2-3)/(4x^3+3x^2+1)](罗比达) =lim[6x/(12x^2+6x)] =-6/6=-1