设数列a1=a,an+1=an^2+a1,当a属于(0,1/4]时,求证:an的绝对值小于等于2

设数列,a1=3,an+1=3an-2,求数列an是等比数列 设数列{an}中,a1=2,an+1=an+n+1,则通项an=? 设数列{an},a1=3,a(n+1)=3an -2 (1)求证:数列{an-1}为等比数列 设数列{an},a1=2,a（n+1）=an+In·（1+1/n）,求an 设数列﹛an﹜中,a1+4,an=3a(n-1)+2n-1,求通项an 设数列AN满足A1等于1,3(A1+a2+~+AN)=(n+2)an,求通向公式 数列{An}满足a1=1/2,a1+a2+..+an=n方an,求an 设数列a1=a,an+1=an^2+a1,当a属于(0,1/4]时,求证:an的绝对值小于等于2 设数列an满足a1=2,a(n+1)=3an+2^(n-1),求an2,设数列an满足a1=2,a(n+1)=3an+2n,求an 设数列{an}满足a1=1, an=(4an-1 +2)/(2an-1 +7) ,则通项xn=? 设数列{an}中,若an+1 =an+ an+2 (n∈N*),则称数列{an}为“凸数列” .设数列{an}为“凸数列”求第二问证明设数列{an}中,若an+1 =an+ an+2 (n∈N*),则称数列{an}为“凸数列” .设数列{an}为“凸数列”,若a1 =1, 设数列an=n^2+λn,a1 关于数列、等差数列的题目设数列an满足an+1=an-2且a1=241）判断an是什么数列2）若an 已知数列{an},A1=1 A(n+1)=2an/an+2 求a5 数列{an},a1=1,2a(n+1)=an +1,求通项an? 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 数列{an}满足a1=2,a(n+1)=2an+n+2,求an