1、如果lim_(xto x_0)f(x)=infty,lim_(xto x_0)g(x)=infty,则必有A. $\lim_{x\to x_0}[f(x)+
3.给出以下4个命题①若lim_(xto+infty)f(x)=a,则lim_(ntoinfty)f(n)=a.②若lim_(ntoinfty)f(n)=a,则
若 lim_(x to 0) (f(2x))/(x) = 2,则 lim_(x to infty) xf((1)/(2x)) = ( )A. $\frac{1}
3.给出以下4个命题①若lim_(xtoinfty)f(x)=a,则lim_(ntoinfty)f(n)=a.②若lim_(ntoinfty)f(n)=a,则l
对任意随机变量 X 的分布函数 F(x), 都满足 lim_(x to +infty) F(x) = 1 且 lim_(x to -infty) F(x) =
lim_(x to infty) x sin (1)/(x) =()单选题(共40题,100.0分) 14. (2.5分) $\lim_{x \to \inft
lim_(x to infty) (sin x)/(x) = 1A. 对B. 错
lim_(x arrow infty ) xsin (1)/(x) =_____。$ \lim_{x \rightarrow \infty } x\sin \f
516 lim_(x to infty) (x+sin x)/(x)A. 不存在.B. =0.C. =1
若 lim_(x to x_0) f(x) 存在,且 C 为常数,则 lim_(x to x_0) Cf(x) = C lim_(x to x_0) f(x)A