数列{an}中,an=32,Sn=63,（1）若数列{an}公差为11的等差数列,求a1（2）若数列{an}为以a1=1为首的等比数列,求数列{an^2}的前m项和Sm

数列｛An｝中,An+Sn=n,那么An=? 数列an中,a1=1,sn+1=sn-1/2an,则an=? 已知数列{an}中,an>0,s=a1+a2+.+an,且an=6sn/(an+3),求sn “已知数列{an}中,an>0,Sn是数列{An}中的前n项和,且An+1/An=2Sn”An>0,求An 数列an中,a1=3,an+1=3an,则an= ,sn= 已知数列{an}中,an>o,且2Sn=an2+an,求an 数列an中an=32sn=63,①若数列an为公差为1的等差数列,求a1②若数列an首相...数列an中an=32sn=63,①若数列an为公差为1的等差数列,求a1②若数列an首相为a1=1,求数列an平方的前n项和Tn 数列{an}中,前n项和Sn=3+2an,求通项公式和Sn 在数列an中,a1=1,Sn=n²an,则an= 已知数列 {an}中,a1=56,an+1=an-12 求Sn的最大值 数列{an}中,前n项Sn=an²,则an等于?请问如何做 数列an中,若Sn=-3an+2n,求an 数列{an}中,Sn-2an=2n, 求证{an-2}是等比数列 已知数列{an}中,an＞0,Sn=a1+a2+.+an,且an=6Sn/(an+3),求Sn. 已知数列{an}中,an>0,Sn=a1+a2+……+an,且an=6Sn/（an+3) 求Sn 已知数列{an}中,an＞0,Sn为{an}的前n项和,且an+1/an=2Sn,求an. 已知数列{an}中,an＞0,Sn为{an}的前n项和,且an+1/an=2Sn,求an. 已知数列{an}中a1=1,且满足an+an-1不等于0,Sn=1/6*(an+1)(an+2).(1)求通项an,并说明{an}是什么数列(2)求数列{an}的前n项和Sn