摘要:(2)若.数列
网址:http://m.1010jiajiao.com/timu_id_475830[举报]
数列{an}的首项为1,前n项和是Sn,存在常数A,B使an+Sn=An+B对任意正整数n都成立.
(1)设A=0,求证:数列{an}是等比数列;
(2)设数列{an}是等差数列,若p<q,且
+
=
,求p,q的值.
(3)设A>0,A≠1,且
≤M对任意正整数n都成立,求M的取值范围.
查看习题详情和答案>>
(1)设A=0,求证:数列{an}是等比数列;
(2)设数列{an}是等差数列,若p<q,且
1 |
Sp |
1 |
Sq |
1 |
S11 |
(3)设A>0,A≠1,且
an |
an+1 |