真题
解题方法
1 . 已知各项均为正数的数列{
}的前n项和满足
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2601e41c06e1603f21c7995b4bb7f051.png)
(1)求{
}的通项公式;
(2)设数列{
}满足
,并记
为{
}的前n项和,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9ab3ad3eab551995ffba49295b21247.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2601e41c06e1603f21c7995b4bb7f051.png)
(1)求{
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)设数列{
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a184a2c27de2c7e013dff54a9c9d657c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f87820fb0305b20e21e5f8579bcd673c.png)
您最近一年使用:0次
2016-11-30更新
|
2007次组卷
|
3卷引用:2007年普通高等学校招生全国统一考试理科数学卷(重庆)