lim (n+1分之n+3)n次= n→∞
求极限lim(x→∞)(1/n+2/n+3/n..+n/n)
证明极限lim[n→∞] (-1)的n+1次/n=0
求lim n→∞ (1+2/n)^n+3
求极限:lim(n→∞)[(3n+1 )/(3n+2)]^(n+1)
lim(x→∞)1+2+3+…+n/(n+2)(n+4)=?
lim(n→∞)[1/(3n+1)+1/(3n+2)+~1/(3n+n)]
求极限lim [ 2^(n+1)+3^(n+1)]/2^n+3^n (n→∞)
lim n →∞ (1^n+3^n+2^n)^1/n,求数列极限
lim(n→∞)(3∧n-2∧n)/((3∧n+1)-(2∧n+1))
lim(n→∞) (n+1)(n+2) (n+3)/5n3次方+n 的极限?
请问如何证明lim(n→∞)[n/(n2+n)+n/(n2+2n)+…+n/(n2+nn)]=1,
求极限lim(n→∞)∑(k=1→n)k^3/(n^3+n^2+n+k^3)