lim{[(X+1)/(x-1)]^(x-1)}
解:首先你要知道一个重要极限:lim(x->∞)(1+1/x)^x=e再来做这道题:lim(x->∞){[(x+1)/(x-1)]^(x-1)}=lim(x->∞)[1+2/(x-1)]^(x-1)=lim(x->∞){{1+1/[(x-1)/2]}^[(x-1)/2]}^2={lim(x->∞){1+1/[(x-1)/2]}^[...
举一反三
- lim(x)lim(x→∞)[(x-1)/(x+1)]^2x
- (1)lim(x-1)/sin(x-1),x趋向于1
- 设函数f(x)=x+1/x,则f(x-1)=() A: x/x+1 B: x/x-1 C: 1/x+1 D: x/x-1
- (X-1)(X+1)=X的平方-1(X-1)(X的平方+X+1)=X的立方-1(X-1)(X的立方+X的平方+X+1)=X的四次方-
- 【单选题】用if语句表示如下分段函数f(x),下面程序不正确的是()。 f(x)=2x+1 x>=1 f(x)=3x/(x-1) x<1 A. if(x>=1):f=2*x+1 f=3*x/(x-1) B. if(x>=1):f=2*x+1 if(x<1):f=3*x/(x-1) C. f=2*x+1 if(x<1):f=3*x/(x-1) D. if(x<1):f=3*x/(x-1) else:f=2*x+1
内容
- 0
求极限lim(x→1)(2/x^2-1)-(1/x-1)
- 1
[lncos(x-1)]/[1-sin(πx/2)]x≠1
- 2
用罗必达法则求极限Lim(x趋0){(1/x)-[1/(e^x-1)]}的极限,
- 3
已知X+1/X=1,求X-1/X=?
- 4
lim→0(x^2sin(1/x))/(e^x-1)