已知等差数列的公差与等比数列的公比相等,且都等于d,又知a1=b1,a3=3b3,a5=5b5,求an,bn

已知等差数列的公差与等比数列的公比相等,且都等于d,又知a1=b1,a3=3b3,a5=5b5,求an,bn 等差数列an的公差和等比数列bn的公比相等,且都等于d(d>0）d不等于0,若a1=b1,a3=5b3,a5=5b5求a {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}? 已知等差数列{an}的公差和等比数列{bn}的公比都是d(d≠1）,且a1=b1,a3=3b3,a5=5b5,求a1和d 已知等差数列｛an｝的公差与等比数列｛bn｝的公比相等,且都等于d（d>0,且d≠1）,又知a1=b1,a3=3b3,a 已知等差数列{an}的公差和等比数列{bn}的公比相等且都等于d(d大于0,且不等于1),又a1=b1,a3=3b3,a 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 已知等差数列{an}的公差与等比数列{bn}的公比相等,且都等于d(d>0,且d≠1),又知a1= 设{an}是等差数列,{bn}是各项都为正数的等比数列且a1=b1=1,a3+b5=21,a5+b3=13.求{an}, 设{an}是等差数列,{bn}是各项都为正数的等比数列且a1=b1=1,a3+b5=21,a5+b3=13.求[an}, 设{an}是等差数列,{bn}是各项都为正数的等比数列,且a1=b1=1,a3+b5=21,a5+b3=13,求{an} 设{an}是等差数列,{bn}是各项都为正数的等比数列,且a1=b1=1,a3+b5=21,a5+b3=13 (1)求{