函数 (x)=lim _(tarrow 0)((1+dfrac {sin t)(x))}^dfrac ({x)(t)} 在 (-infty ,+infty ) 内 ()-|||-(A)连续 (B)有可去间断点 (C)有跳跃间断点 (D) 有无穷间断点

【题目]-|||-lim _(xarrow infty )x sin [ 1+dfrac {3)(x))] -sin [ ln (1+dfrac (1)(x))

(7) lim _(xarrow infty )((1+dfrac {1)(x))}^dfrac (x{2)};

(9) lim _(xarrow +infty )dfrac (ln (1+dfrac {1)(x))}(arctan x) :

(9) lim _(xarrow +infty )dfrac (ln (1+dfrac {1)(x))}(arctan x)-|||-()

(9) lim _(xarrow +infty )dfrac (ln (1+dfrac {1)(x))}(arctan x) ,

极限 lim _(xarrow +infty )dfrac (ln (1+dfrac {1)(x))}(arctan x)

[题目] lim _(xarrow infty )((1+dfrac {2)(x))}^x= __

lim _(xarrow +infty )dfrac (sin x)(sqrt {x)}=0

计算__-|||-lim _(xarrow infty )((sin dfrac {1)(x)+cos dfrac (1)(x))}^x计算

lim _(xarrow +infty )dfrac ({int )_(1)^(x^2)arctan dfrac (t)(2)tdt}({x)^3ln (1+d