[例 1-14] 求 lim _(xarrow -1)(dfrac (1)(x+1)-dfrac (3)({x)^3+1})

求极限__-|||-lim _(xarrow -1)(dfrac (1)(x+1)-dfrac (3)({x)^3+1})求极限

求下列极限.-|||-lim _(xarrow -1)(dfrac (1)(x+1)-dfrac (4)({x)^3+1})

求lim _(xarrow 1)(dfrac (3)(1-{x)^3}-dfrac (1)(1-x))=()lim _(xarrow 1)(dfrac (3)(

求lim _(xarrow 3)dfrac (sqrt {x+1)-2}(x-3)求

求极限：lim _(xarrow 1)(dfrac (1)(1-x)-dfrac (3)(1-{x)^3})-|||-__ __.求极限：.

14 lim _(xarrow 1)(dfrac (1)(1-x)-dfrac (3)(1-{x)^3}) 一

求下列极限：lim _(xarrow 1)(dfrac (3)(1-{x)^3}-dfrac (1)(1-x))-|||-__求下列极限：

求极限lim _(xarrow 0)dfrac (x({e)^x+1)-2((e)^x-1)}({x)^3}-|||-__求极限

[题目]-|||-lim _(xarrow infty )((dfrac {x+3)(x-1))}^x+1

lim _(xarrow 1)(dfrac (1)(1-x)-dfrac (3)(1-{x)^3})-|||-__ __;;