已知数列满足a1=1,根号a（n-1）-根号an=根号an*a（n-1）,求an

已知数列满足a1=1,根号a（n-1）-根号an=根号an*a（n-1）,求an 已知数列{an}满足a1=0 a(n+1)=(an-根号3）/(根号3an+1) (n属于N*）,则a20=? 已知数列｛an｝满足a1=1,a（n+1）=nan n+1是角标 已知数列满足a1=0,a(n+1)=an+1+2根号（an+1）,n∈N,则a99=? 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. 已知数列{a}满足a1=1/2,a（n+1）=an+1/(n^2+n),求an已知数列{a}满足a1=1/2,a（n+1）=an+1/(n^2+n),求an 已知数列{an}满足an^2=a(n+1)an-1(n>=1),且a1=根号2,则与根号(a2005)最接近的自然数是 已知数列{an}满足,a1=0,a(n+1)=an+1+2根号下(an+1),则an=.（求通项） 已知数列{an}满足a1=33,a（n+1）-an=2n,求an/n的最小值 已知数列an满足a1=2,an=a(n-1)+2n,（n≥2）,求an 已知数列{an}满足a1=2,根号下a(n+1)/2an等于n+1/n,求{an}的通项公式? 已知数列{an}满足a1=1,an-a（n-1）=1/根号下n+1加根号下n,（n≥2）,则an=? 已知数列满足a1=1,an-a(n-1)=n-1,求其通项 已知数列{an}满足a(n+1)=an+n,a1=1,则an= 已知数列{an}满足a1=2,a(n+1)-an=a(n+1）*an,则a31=? 已知数列{an}满足A1=0,A(N+1)=AN减去根号三/根号三AN加1.求A2,A3,A4,A5,A6N为正整数 已知数列{an}满足A1=0,A(N+1)=AN减去根号三/根号三AN加1.求通项公式和A20 已知数列{an}满足a1=0 a(n+1)=(an-根号3）/(根号3an+1) (n属于N*）,则a20=?如题..给我郁闷的。有没有别的做法？