lim x->+无穷 x/[x^n+1-(x-1)^n+1]=k,n为正整数,求n和k
lim x->+无穷 x/[x^n+1-(x-1)^n+1]=k,n为正整数,求n和k
求极限:lim(x→无穷)(2^n-7^n)/(2^n+7^n-1)=?
求极限A(m,n)=lim(x→1) x^m-1/x^n-1,m,n为正整数
求极限 lim x-无穷 sin(n+1)/(n+a)
试证明 x/[n(n+k)]=(x/k)[1/n-1/(n+k)]
f(x)=lim (1+X)/(1+x^2n) n->无穷 求间断点
lim(n→∞)∑(x-1)/[n+(x-1)k] 怎么求它的极限
lim(n趋向于无穷)(k/n-1/n+1-1/n+2-‘‘‘‘-1/n+k)(其中K为与N无关的正整数)
求极限(1)lim(n->∞)∫(0,1)x^n/(1+x)dx (2)lim(n->∞)∫(n+k,n)sinx/xd
设f(x)=lim(n趋于无穷)n次根号下[1+|x|^3n],求f(x)的
求极限 lim(x→1) (1-x^n)/(1-x) (n→无穷)
证明n*(x+1)^(n-1)=Σ(k=0到n)k*c(n,k)*x^(k-1)