lim _(x arrow infty)(1-(1)/(3x))^x= ( )

lim_(x arrow infty ) (2x^3-x+1)$ \lim_{x \rightarrow \infty } (2x^3-x+1) $

lim_(x arrow infty ) xsin (1)/(x) =_____。$ \lim_{x \rightarrow \infty } x\sin \f

1.6] 求极限= lim _(x arrow infty )( (1)/(x)+2^ (1)/(x))^x1.6] 求极限$= \lim _{x \right

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

lim_(x arrow infty ) ((1+x)/(x))^2x$\lim_{x \rightarrow \infty } (\frac{1+x}{x})

16、求极限 lim _(xarrow infty )((dfrac {x-1)(x+2))}^3x

求极限 lim _(x arrow 0) (x- ln (1+x))/(1- cos x)17. 求极限 $\lim _{x \rightarrow 0} \f

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

(2)若 lim _(xarrow infty )((1+dfrac {k)(x))}^-3x=(e)^-1 ,则 k= __

lim _(x arrow 1)((1)/(x-1)-(3)/(x^2-1))= $\lim _{x \rightarrow 1}\left(\frac{1}{