求下列极限：
求下列极限：
求lim _(xarrow +infty )((dfrac {2)(pi )arctan x)}^x-|||-__求
.求极限 lim _(xarrow infty )dfrac (arctan x)(x)..
求下列式子的极限：lim _(xarrow +infty )((dfrac {pi )(2)-arctan x)}^dfrac (1{ln x)}-|||-__
(2) lim _(xarrow +infty )((dfrac {2)(pi )arctan x)}^x;
1.求下列极限.-|||-(4) lim _(xarrow +infty )dfrac (ln (1+dfrac {1)(x))}(dfrac {pi )(2)
(11) lim _(xarrow +infty )((dfrac {2)(pi )arctan x)}^x
求极限：lim _(xarrow infty )((sin dfrac {1)(x)+cos dfrac (1)(x))}^x-|||-__ __求极限：
(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 _(xarrow infty )dfr
[题目]求极限 lim _(xarrow infty )[ x-(x)^2ln (1+dfrac (1)(x))] .