已知{an},{bn}满足lim(2an+bn)=1,lim(an-2bn)=1,求lim(anbn)的值
已知lim(3An+4Bn)=8,lim(6An-Bn)=1,求lim(3An+Bn)的值
已知lim(3an+4bn)=8,lim(6an-bn)=1,则lim(3an+bn)的值是多少
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
高二的极限运算题 lim(2an+4bn)=8,lim(6an-bn)=1,求lim(3an+bn)的值 n趋向于无穷大
lim(3an+4bn)=8 lim(6an-bn)=1 求lim(3an+bn) 要设3an+4bn=m 6an-bn
已知数列{an}、{bn}满足:a1=1/4,an+bn=1,bn+1=bn/1-an^2 (1)求{an}的通项公式
数列的极限高中lim(2bn^2+4n+an^2-2n+1)/(bn+2)=1
等差数列an,bn的前n项和分别为Sn,若Sn/Tn=2n/(3n+1),求lim an/bn
lim[{根号(n^2+an)}-(bn+1)]=b,求a
1 lim[2n+1-根号(an^2+bn+1)]=2 求a b的值
若lim(2n+(an^2-2n+1)/(bn+2))=1 求a/b的值
数学题 lim(an^2+bn-100)/(3n-1) =2 求ab的值大神们帮帮忙