数列an满足a1=1,1/2an+1=1/2an+1,求证数列1/an是等差数列
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=1/2,an+1=3an/an+3求证1/an为等差数列
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a1=2,an+1=2an/an+2.求证数列{1/an}是否为等差数列 并求出an
数列an满足a1=1,1/2an+1=1/2an+1,求证数列1/an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an+an+1=2n+1(n∈N*),求证:数列{an}为等差数列的充要条件是a1=1.
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
数列{an}满足a1=1,an=an-1(1+2an)(n-1是下标).1、求证:{1/an}是等差数列;2、若a1a2
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
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
数列{an}满足 a1=2,a2=5,an+2=3an+1-2an.(1)求证:数列{an+1-an}是等比数列; (2