一道高二数列题已知数列{an}满足a1=2,an+1=2an/an+2 问:数列1/na是否是等差数列?为什么.并求an
一道高二数列题已知数列{an}满足a1=2,an+1=2an/an+2 问:数列1/na是否是等差数列?为什么.并求an
已知数列{an}满足a1=2,an+1=2an/an+2.求证数列{1/an}是否为等差数列 并求出an
已知数列{An}满足A1=1,An+1=2An+2^n.求证数列An/2是等差数列
已知数列{an}满足a1=2,a(n+1)=(3an-2)/(2an-1),求证{1/(an-1)}是等差数列,并求数列
已知数列{an}满足2an/an+2=an+1(n属于正整数),a1=1/1006.求证:数列{1/an}是等差数列,并
已知数列an满足:an+1-2an=2^n+1,且a1=2 (1)证明{an/2^n}是等差数列 (2)求数列an的
已知数列{an}满足a1=3 an*a(n-1)=2a(n-1)-1,求证数列{1/(an-1)}是等差数列,并求出数列
已知数列{an}满足an+1=2an+3.5^n,a1=6.求an
已知数列an满足 a1=1/2,an+1=3an/an+3求证1/an为等差数列
已知数列an满足a1=4 an=4-4/an-1(n大于等于2) 求证bn是等差数列 求数列an的通项公式
若数列{An}满足An+1=An^2,则称数列{An}为“平方递推数列”,已知数列{an}中,a1=9,点(an,an+
已知数列an满足an+1=3an/an+3求证{1/an}是等差数列.当a1=1/2时求a100