已知数列{an}是首项a1=1的等比数列且an>0{bn}是首项为1的等差数列又a5+b3=21,a3+b5=13
已知数列{An}是首项a1=1的等比数列,且An〉0,{bn}是首项为1的等差数列,又a5+b3=21,a3+b5=13
已知数列{an}是首项a1=1的等比数列且an>0{bn}是首项为1的等差数列又a5+b3=21,a3+b5=13
设数列{an}是等差数列,{bn}为各项都为正数的等比数列.且a1=b1=1,a3+b5=21,a5+b3=13.
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}
等差数列 等比数列 {an}是等差数列,{bn}是各项为正的等比数列,且a1=b1=1,a3+b5=21,a5+b3=1
数列{an}是等差数列,{bn}是正项等比数列,且a1=b1=1,a3+b5=21,a5+b3=13,求{an}和{bn
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{
设an是等差数列,bn是各项都为正数的等比数列,且a1=b1=1,a5+b3=13 a3+b5=21
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
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
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
{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