1.6] 求极限= lim _(x arrow infty )( (1)/(x)+2^ (1)/(x))^x

已知极限 lim _(x arrow infty)((x^2)/(x+1)-x-a)=2，则常数 a 是（ ）A. 1B. 2C. -2D. -3

求极限lim _(xarrow +infty )x(sqrt (1+{x)^2}-x)。求极限。

求极限lim _(xarrow +infty )x(sqrt (1+{x)^2}-x)。求极限。

计算下列极限lim _(arrow infty )dfrac (x)(sqrt {{x)^2+1}+x}计算下列极限

求极限 lim_(x to infty) ( (2x+3)/(2x+1) )^x-1 求极限 $\lim_{x \to \infty} \left( \frac

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

7.试求下列极限:-|||-(1) lim _((x,y)arrow +infty )dfrac ({x)^2+(y)^2}({x)^4+(y)^4}-|||-

求极限 lim_(x to +infty) (3^x + 9^x)^(1)/(x) 求极限 $\lim_{x \to +\infty} (3^x + 9^x)^

求极限 lim _(xarrow +infty )((x+sqrt {1+{x)^2})}^dfrac (1{x)}

求极限, lim_(x arrow 0)(ln(1+x))/(x)求极限, $\lim_{x \rightarrow 0}\frac{\ln(1+x)}{x}$