lim _(xarrow infty )xsin dfrac (2x)({x)^2+1}=________.________.
[题目]极限 lim _(xarrow infty )xsin dfrac (2x)({x)^2+1}= __
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)(x)= __
lim _(xarrow infty )((1-dfrac {1)(2x))}^x+2= ).A.lim _(xarrow infty )((1-dfrac {
求lim _(xarrow infty )xsin dfrac (2)(x)求
[题目] lim _(xarrow infty )xsin dfrac (1)(x)= __ --
(3) lim _(xarrow infty )xsin dfrac (x)(2{x)^2+1} ,
lim _(xarrow infty )x((e)^dfrac (1{2x)}-1)==
lim _(xarrow 0)dfrac (1-{e)^(x^2)}(xsin 2x)