lim(3^(n+1)-2^n)/(3^n+2^(n-1))=
lim[(n+3)/(n+1))]^(n-2) 【n无穷大】
求极限lim(x→∞)(1/n+2/n+3/n..+n/n)
lim n趋向无穷大(3^n+2^n)/(3^(n+1)-2^(n+1))=?
lim n->无穷大(2^n-1)/(3^n+1)
lim根号n^2+n+1/3n-2
lim(3^2n+5^n)/(1+9^n)
求lim n→∞ (1+2/n)^n+3
lim(n→∞)[1/(3n+1)+1/(3n+2)+~1/(3n+n)]
求极限:lim(n→∞)[(3n+1 )/(3n+2)]^(n+1)
lim n趋于无穷大(1/n^2+3/n^2+.+2n-1/n^2
lim(1/n^2+4/n^2+7/n^2+…+3n-1/n^2)
求极限lim [ 2^(n+1)+3^(n+1)]/2^n+3^n (n→∞)