求limΣ（1/(n+(i^2+1)/n)）(是i=1到n,n趋近无穷大)

求limΣ（1/(n+(i^2+1)/n)）(是i=1到n,n趋近无穷大) 求极限n~∞,lim(n+1)/2n 求lim n→∞ (1+2/n)^n+3 求极限Lim（(n-x)/(n+2))^(n+1) lim (1+2/n)^n+4 n-->无穷大 求极限 求1.lim(3n-(3n^2+2n)/(n-1)) 2.lim(8+1/(n+1)) 3.lim根号n(根号(n+1)-根号(n-3)) 求极限 lim(n->∞) (n!/n^e)^1/n 求极限lim 2/(3^n-1) 求lim(n-无穷)(sinn!/(n!+1)) 求极限lim [ 2^(n+1)+3^(n+1)]/2^n+3^n (n→∞) 求lim(n+1)(n+2)(n+3)/(n^4+n^2+1) 求极值 lim(n->无限) [n(n+1)(2n+1)]/6n^2如题,.. lim n →∞ (1^n+3^n+2^n)^1/n,求数列极限 lim(n/(n^2+1)+...+n/(n^2+n))x趋向于无穷 求解答过程~ 求极限lim(x→∞)（1/n+2/n+3/n..+n/n） 用夹逼定理求lim(n→∞)[√(n^2+n)-n]^(1/n) 求极限lim(n→∞)(1/n²+2/n²+...+n/n²) 用夹逼定理求lim(n→∞)√[(n^2+n)-n]^(1/n)