2014·广东东莞·二模
名校
解题方法
1 . 已知函数
,数列
的前
项和为
,点
均在函数
的图象上.
(1)求数列
的通项公式
;
(2)令
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/815816ef42686063d113a3f725b8d119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db1db408f85d85ce7b973b9fffbe7fc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42228f53346b32a762db73d92833af12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d0e10fa4acb20593a30be58ce7a6234.png)
您最近一年使用:0次
2016-12-03更新
|
5439次组卷
|
5卷引用:第十一届高一试题(A卷)-“枫叶新希望杯”全国数学大赛真题解析(高中版)