求极限-|||-lim _(xarrow infty )((dfrac {1)(x)cdot dfrac ({a)^x-1}(a-1))}^1/x (a>0,a≠1)

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

求极限：lim _(xarrow 0)(dfrac (1)(x)-dfrac (1)({e)^x-1})= () .-|||-__求极限：

)求下列极限:-|||-(1) lim _(xarrow 1)dfrac ({x)^2-x+1}({(x-1))^2} =-|||-(3) lim _(xarr

求极限 lim _(xarrow 1)(dfrac (x)(x-1)-dfrac (1)(ln x)) .

求极限lim _(xarrow +infty )(({x)^dfrac (1{x)}-1)}^dfrac (1{ln x)}.求极限.

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

求下列极限lim _(xarrow 0)(dfrac (1)(x)-dfrac (1)({e)^x-1});求下列极限

极限 lim _(xarrow infty )((dfrac {x+1)(x-1))}^x= () .

极限 lim _(xarrow infty )((dfrac {x+1)(x-1))}^x= __

1.求极限 lim _(xarrow 0)(dfrac (1)(x)-dfrac (1)({e)^x-1}).