求极限1:lim[√n^2+2n-1]-[√n^2-n+1] n→∽ 2:lim{[(x^n)-2]/[(x^n)+2]
求极限lim(x→∞)(1/n+2/n+3/n..+n/n)
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→∞) ((2n!/n!*n)^1/n的极限用定积分求
求极限,lim(x->0) (1-2sinx)^(3/x)lim(n->+∞) (n!-4^n) / (6+ln(n)+
求极限lim [x^(n+1)-(n+1)x+n]/(x-1)^2 x趋于1
lim n〔√(n^2+1)-n〕当n→∞时的极限
求极限 lim(n->无穷)[(3n^2-2)/(3n^2+4)]^[n(n+1)]