求极限lim [x^(n+1)-(n+1)x+n]/(x-1)^2 x趋于1

求极限Lim（(n-x)/(n+2))^(n+1) 求极限lim(x→∞)（1/n+2/n+3/n..+n/n） 求极限 lim(n->∞) (n!/n^e)^1/n 求极限lim [x^(n+1)-(n+1)x+n]/(x-1)^2 x趋于1 求极限lim(-2)^n+3^n/(-2)^[n+1]+3^[n+1] (x→∞) 求极限：lim(x→无穷)(2^n-7^n)/(2^n+7^n-1)=? 求极限n~∞,lim(n+1)/2n 求 lim (n→+∞) n^( 1/n)的极限 求极限lim(n+1/n+3)^n如题 lim (1+2/n)^n+4 n-->无穷大 求极限 求极限lim 2/(3^n-1) lim[n/(n*n+1*1)+n/(n*n+2*2)+...+n/(n*n+n*n)],当x趋向无穷大时,怎么求极限, 求极限 x→∞lim(3^n+1)/(3^(n+1)+2^n)= 求极限~lim n[e-(1+1/n)^n] n->无穷lim n[e-(1+1/n)^n] n->无穷 1.6求极限lim(x→∞) [1+2+3+......+(n-1)]/ n^21.6求极限lim(x→∞) [1+2+3+......+(n-1)]/ n^2 求极限:x趋向于1,lim(m/1-x^m—n/1-x^n) 求极限 lim(x→1) (1-x^n)/(1-x) (n→无穷) 极限 lim(x-->无穷)(1/n sin(n)+1/n sin(1/n)+nsin(1/n))求极限lim(x-->无穷)(1/n sin(n)+1/n sin(1/n)+nsin(1/n))