设公差为非零的等差数列{An}与等比数列{Bn},满足A1=B1,A3=B3,A7=B5,求公比q
设公差为非零的等差数列{An}与等比数列{Bn},满足A1=B1,A3=B3,A7=B5,求公比q
设公差为非零的等差数列{An}与等比数列{Bn},满足A1=B1,A3=B3,A7=B5,试问对怎样的n,m,可使An=
设公差d不等于零的等差数列{an}和等比数列{bn}满足a1=b1.a3=b3.a7=b5.求使an=bm成立的n=f(
数列{an}是公差不为零的等差数列,{bn}是等比数列,且a1=b1=1,a3=b3,a7=b5,求数列{an}与{bn
设正项数列{an}是公差不为零的等差数列,正项数列{bn}是等比数列,且a1=b1,a3=b3,a7=b5
设公差d不等于0的等差数列{an}和等比数列{bn}满足a1=b1,a3=b3,a7=b5,求使an=bm成立的n与m的
设等差数列{an}的公差d≠0,数列{bn}为等比数列,若a1=b1=a,a3=b3,a7=b5
{an}等差数列,{bn}等比数列,公差公比均为d,且a1=b1,a3=3b3,a5=5b5,求{an}和{bn}?
已知数列[an]为等差数列,公差d≠0;[bn]为等比数列,公比为q,若a1=b1,a3=b3,a7=b5,且an=bm
设{an}为等差数列,{bn}为等比数列又a1=b1,a3=b3,a7=b5.比较的a15和b7大小关系,给出证明
设等差数列{an}的公差d≠0,数列{bn}为等比数列,若a1=b1,b2=a3 b3=a2,则bn的公比为
有关数列的一道选择题设有公差不等于零的等差数列{an}与等比数列{bn},两个数列有关系;a1=b1,a3=b3,a7=