数列An满足 根号下AnAn+1 +AnAn+2=4根号下AnAn+1 +An+1An+1 +数列An满足根号下AnAn+1 +AnAn+2=4根号下AnAn+1 +An+1An+1 +3根号下AnAn+1 且A1=1 A2=8 求An通项公式

数列An满足 根号下AnAn+1 +AnAn+2=4根号下AnAn+1 +An+1An+1 +数列An满足根号下AnAn+1 +AnAn+2=4根号下AnAn+1 +An+1An+1 +3根号下AnAn+1 且A1=1 A2=8 求An通项公式 数列An满足 根号下AnAn+1 +AnAn+2=4根号下AnAn+1 +An+1An+1 +3根号下AnAn+1 且A1=1,A2=8求An 已知数列满足a1=1,根号an-1-根号an=根号anan-1,求an 数列an满足a1=2 ,a2=1,且( an-1 -an )/anan-1 =(an -an+1 )/anan+1 (n大于等于2),求a100 = 数列{an}和{bn}满足a1=1 a2=2 an>0 bn=根号an*an+1且{bn}是以公比为q的等比数列已知数列{an},{bn}满足a1=1,a2=2,an>0,bn=根号下(anan+1)(n属于N*）,且{bn}是以q为公比的等比数列（1）证明：an+2=an*q的平方,并求an 已知数列an满足a1=1/2,anan+1=2an-an+1,求ann+1是下角标 数列﹛an﹜满足an+1-an=-anan+1,若a1=1,则a5等于 已知数列满足a1=1,√an-1 - √an = √anan-1 ,求an= 数列{An}满足A1=1/3,且An+1+An^3=3An(1+AnAn+1),求数列{An}的通项公式?） 在数列{An}中,An小于0（n属于正整数）,数列{AnAn+1}是公比为q的等比数列,且满足2AnAn+1+An+1An+2>An+2An+3,则公比Q的取值范围? 已知数列{an}满足a1=1,anan+1=2^n,则a9+a10 已知数列an满足a1=1/2,anan-1=an-1-an,求数列an的通项公式 如果数列｛an}满足a1=2,a2=1,且（an-1-an)／(anan-1)=(an-an+1)／(anan+1)(n≥2),则此数列的第10项为? 已知数列{an}满足a1=2且anan+1-2an=0球a2,a3,a4的值 已知数列{an}满足,a1=2,a(n+1)=3根号an,求通项an数列{an}满足:an>0,且根号下Sn=an+1/4,求通项an 数列{an}满足a1=3,an-anan+1=1,An表示{an}前n项之积,则A2013= 已知数列{an}满足an>0,a1=3 根号下[a(n+1)]=(根号下an)+1 （n属于N*) 则an=?如题. 数列an满足an+1=2an-1且a1=3,bn=an-1/anan+1,数列bn前n项和为Sn.求数列an通项an,