名校
解题方法
1 . 已知数列
的前n项和为
,且满足
,
.
(1)求数列
的通项公式;
(2)若等差数列
满足
,且
,
,
成等比数列,求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/e9645bd4d2002993b90ec6d48f9c04f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69b133da6810773770a6a69c4cd5379e.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若等差数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dd6db2972a2cb57b104f57799d82d1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8e9d23ee41a3aad6b9452fb08b5dcfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb766fcd64060a6cafd52a75ea82769e.png)
您最近一年使用:0次
2023-08-07更新
|
689次组卷
|
2卷引用:福建省宁德第一中学2023-2024学年高二上学期开学检测数学试题