求lim _(xarrow infty )xsin dfrac (2)(x)

极限lim _(xarrow infty )(x)^2(2-xsin dfrac (1)(x)-cos dfrac (1)(x))=A.lim _(xarrow

.lim _(xarrow infty )xsin dfrac (1)(2x)= __

lim _(xarrow infty )xsin dfrac (1)(x)= __

[题目] lim _(xarrow infty )xsin dfrac (1)(x)= __ --

lim _(xarrow infty )xsin dfrac (2x)({x)^2+1}=________.________.

(3) lim _(xarrow infty )xsin dfrac (x)(2{x)^2+1} ,

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

求lim _(xarrow infty )dfrac (sin dfrac {3)(x)}(sin dfrac {2)(x)}求

lim _(xarrow infty )(dfrac (1)(x)sin 5x+xsin dfrac (8)(x))=

2.按例4的方法求下列极限:-|||-(1) lim _(xarrow 0)dfrac ({e)^xsin x-x(1+x)}({x)^3} ;-|||-(2)