求I=lim[1/√(4n^2-1)+1/√(4n^2-2^2)+...+1/√(4n^2-n^2)]
求极限 lim(n->无穷)[(3n^2-2)/(3n^2+4)]^[n(n+1)]
求lim(n+1)(n+2)(n+3)/(n^4+n^2+1)
求极限,lim(1+n)(1+n^2)(1+n^4)-----(1+n^2n)=?(n趋于无穷)
求极限 lim(n→∞)[根号(n^2+4n+5)-(n-1)] =
用数学极限的定义证明lim(n-∞)√(n^2+4)/n=1
lim(1/n^2+4/n^2+7/n^2+…+3n-1/n^2)
一道极限题,lim[n^2(2n+1)]/(n^3+n+4)n->∞
lim 9^n+4^n+2/5^n-3^2n-1 n趋于无穷大时
若lim(2n-√4n^2+an+3)=1,n→∞,求a.
计算极限lim(n→∞){1+ sin[π√(2+4*n^2)]}^n
求极限,lim(x->0) (1-2sinx)^(3/x)lim(n->+∞) (n!-4^n) / (6+ln(n)+
求极限lim(1/2n+3/4n+……+(2^n-1)/(2^n*n))