(13) lim _(xarrow 0)((dfrac {arctan x)(x))}^dfrac (1{{x)^2}}

② lim _(xarrow 0)(x)^2arctan dfrac (1)(x);

计算下列极限：(1) lim _(xarrow 0)(x)^2sin dfrac (1)(x);-|||-(2) lim _(xarrow infty )dfr

1.lim _(xarrow 0)dfrac (arctan x)(x)=1.

(2) lim _(xarrow infty )dfrac (arctan x)(x).

计算下列极限:-|||-(1) lim _(xarrow 0)(x)^2sin dfrac (1)(x);-|||-(2)lim arctan x

13.求极限 lim _(xarrow 0)((dfrac {{2)^x+(8)^x}(2))}^dfrac (1{x)}

lim _(xarrow 0)dfrac (x-tan x)(arctan {x)^3}；；

已知 lim _(xarrow 0)([ 1+x+dfrac {f(x))(x)] }^dfrac (1{x)}=(e)^3, 则 lim _(xarrow 0

lim _(xarrow 0)dfrac ({x)^2sin dfrac (1)(x)}(tan x)=A.0B.1C.lim _(xarrow 0)dfrac

(2) lim _(xarrow +infty )((dfrac {2)(pi )arctan x)}^x;