已知an满足a1=三分之二 an+1=an-2/2an-3 求证1/an-1是等差数列如题

已知an满足a1=三分之二 an+1=an-2/2an-3 求证1/an-1是等差数列如题 已知数列{an}满足a(n+1)=an+n,a1=1,则an= 已知{an}满足a1=1,a(n+1)=2an+2,求an 已知数列{an}满足a(n+1)=an+lg2,a1=1,求an 已知数列{an}满足a1=1 an+1=an/(3an+1) 则球an 已知数列an满足a1=1,a(n+1)=an/(3an+2),则an=? 已知数列an满足条件a1=-2 a（n+1）=2an/(1-an) 则an= 已知数列{an}满足an+1=an+n,a1等于1,则an=? 已知数列{an}满足an+1=2an+3.5^n,a1=6.求an 已知{an}满足a1=1.an=3*n+2An-1,求an 已知数列{an}中满足(An+1-An)(An+1+An)=16,且a1=1,an 已知数列满足a1=1/2,an+1=2an/(an+1),求a1,a2已知数列满足a1=1/2,a(n+1)=2an/(an+1),求a1,a2;证明0 已知数列{an}满足a1=1,3a(n+1)+an-7 已知数列{an}满足a1=2,a(n+1)-an=a(n+1）*an,则a31=? 已知数列满足a1=2,a(n+1)=2an-1/an,证明1/an-1为等差 已知数列an满足a1=1,a(n+1)=an/(3an+1) 求数列通项公式 已知{an}满足a1=3,a（n+1）=2an+1求（ an +1）是等比数列 已知数列｛an｝满足a(n+1)=an+3n+2,且a1=2,求an=?