等差数列an与bn的前n项和之比为5n+3/4n+5 求a10/b10
已知{an},{bn}均为等差数列,前n项的和为An,Bn,且An/Bn=2n/(3n+1),求a10/b10的值
已知数列{an}的前n项和为n^2+pn,数列{bn}的前n项和为32n-n^2 (1)若a10=b10,求p的值 (2
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
已知知数列{an},{bn},均为等差数列,前n项和分别为Sn,Tn,若Sn/Tn=2n+2/n+3,则a10/b10=
{an}{bn}为等差数列,前n项和分别为Sn,Tn,(1)S(2n+1)/Tn=2n+1/n+4 求a10/b5(2)
数列{an}{bn}都是等差数列,他们的前n项的和之比是3n+5/2n-5,则a6/b6=?
数列{an},{bn}都是等差数列,它们的前n项和之比是3n+5/2n-3,则a6/b6等于
一道高中数列题目已知An,Bn是等差数列前n项和分别是S,T若S/T=(2n+2)/(n+3)则A10/B10是多少?麻
等差数列an,bn的前n项和的比为Sn:Sn''=5n+3:2n+7,则a5:b5=?
等差数列an的前n项和为sn=3n^2+bn+c若a3=17,则a10为多少
等差数列{An},{Bn}的前n项和为Sn与Tn,若Sn/Tn=2n/3n+1,则An/Bn的值是?
设等差数列{an}与{bn}的前n项之和为Sn,S`n,Sn/S`n=7n+2/n+3,求a7/b7