一直数列{An}满足A1=1/2,A1+A2+…+An=n^2An用数学归纳法证明An=1/[n(n+1)]

数列{An}满足a1=1/2,a1+a2+..+an=n方an,求an 一直数列{An}满足A1=1/2,A1+A2+…+An=n^2An用数学归纳法证明An=1/[n(n+1)] 数列an满足a1=1/2,a1+a2+a3……an=n^2an,则an 数列{an}满足a1=1 an+1=2n+1an/an+2n 数列｛an｝满足a1=1,且an=an-1+3n-2,求an 数列an满足a1=2,an+1=4an+9,则an=? 已知数列{an}满足an+1=2an+3.5^n,a1=6.求an 数列an满足a1=2,an+1=an²求an 数列an满足a1=2,an+1=an²求an 已知数列an'满足a1=1/2,a1+a2+a3+...+an=n^2an,求通项公式 设数列AN满足A1等于1,3(A1+a2+~+AN)=(n+2)an,求通向公式 1.一直{an}中,a1=1,an+1/an=1/2,则数列的通项公式为?2.已知数列{an}满足a1>0,且an+1=（n/n+1）*an,则数列{an}是一个怎么样的数列（递增?递减?常数列?摆动数列?）3.数列的项数是无限的吗? 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 急!.数列{an}满足a1=2,an+1=-1/an+1,则a2010=? 已知数列满足a1=1 ,an+1+2an=2 求an 已知数列an满足条件a1=-2 an+1=2an+1则a5 数列{an}满足a1=a,an+1=1+1/an.若3/2 数列an满足a1=1,a(n+1)=an/[(2an)+1],求a2010