lim2nan=1(n→∞),且liman(n→∞)存在,则lim(1-n)an(n→∞)=多少
lim2nan=1(n→∞),且liman(n→∞)存在,则lim(1-n)an(n→∞)=多少
大一高数证明题:若an>0,且lim(n→∞)a(n+1)/a(n)=a,则lim(an^(1/n))=a
大一高数题'求解!证明:若an>0,且lim(n→∞)a(n)/a(n+1)=l>1,则lim(n
在数列{an}中,a1=2,且an=1/2(a[n-1]+3/a[n-1]),(n>=2),若lim(n→∞)an存在,
证明两个简单极限1、lim n→∞ n/[(n!)^(1/n)]=e2、an→A 求证:lim n→∞ (a1+2a2+
lim (n→∞) (n^2/(an+b)-n^3/(2n^2-1))=1/4 求a,b
已知:lim (n→∞) [(n^2+n)/(n+1)-an-b]=1 ,求a,b的值
请问如何证明lim(n→∞)[n/(n2+n)+n/(n2+2n)+…+n/(n2+nn)]=1,
已知数列an的前n项和Sn=(n^2+n)*3^n (1)求lim(n→∞)an/Sn (2).
lim(n→∞)(根号n+2-根号n)*根号n-1=?
求极限 lim(n→∞)[根号(n^2+4n+5)-(n-1)] =
等差数列{an},{bn}的前n项和分别为An,Bn,切An/Bn=2n/3n+1,求lim(n→∞)an/bn