已知公差大于零的等差数列
的前n项和为
,且满足
,
.
(1)求
和
;
(2)若数列
是等差数列,且
,求非零常数c.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b75b2793adac495e60e2b9f004d5df73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c80735b4ccb365831ac19a2ad06d3973.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e4a9bdb1a7d858f6fddd7b1b5c1793.png)
2022高三·全国·专题练习 查看更多[4]
(已下线)专题28等差数列通项与前n项和-2022年(新高考)数学高频考点+重点题型湖北省武汉市重点中学4G+联合体2022-2023学年高二上学期期末联考数学试题(已下线)专题29 等差数列通项与前n项和(已下线)期末测试卷02(测试范围:第1-4章数列)-2023-2024学年高二数学《重难点题型·高分突破》(人教A版2019选择性必修第二册)
更新时间:2021-09-04 18:51:27
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