5.根据函数极限或无穷大定义,填写下表:-|||-(x)arrow A (x)arrow infty (x)arrow +infty (x)arrow -infty -|||-forall egt 0,-|||-gt 0,-|||-x→x0 使当 lt |x-(x)_(0)|lt 8 时,-|||-即有 |f(x)-A|lt e.-|||-arrow (x)_(0)+-|||-arrow (x)_(0)-|||-forall Mgt 0,-|||-gt 0,-|||-x→∞-|||-使当 |x|gt x 时,-|||-即有 |f(x)|gt M.-|||-arrow +infty -|||-arrow -infty

5.根据函数极限或无穷大定义,填写下表:-|||-(x)arrow A (x)arrow infty (x)arrow +infty (x)arrow -i

5.根据函数极限或无穷大定义,填写下表:-|||-(x)arrow A (x)arrow infty (x)arrow +infty (x)arrow in

设当 x arrow +infty 时，f(x)，g(x) 都是无穷大，则当 x arrow +infty 时，下列结论正确的是A. $f(x)- g(x)$

4.函数 =xcos x 在 (-infty ,+infty ) 内是否有界?这个函数是否为 arrow +infty 时的无穷大?

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

(6)函数 =xcos x 在 (-infty ,+infty ) 内是否有界?这个函数是否为 arrow +infty 时的无穷大?为什-|||-么-|||

lim _(x arrow infty)(1-(1)/(3x))^x= ( )A. $e^{-3}$B. $e^{-\frac{1}{3}}$C. $e^{\f

((1+dfrac {1)(x))}^(x^2)-|||-.-|||-.arrow +infty e .x

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