名校
1 . 设等比数列
的前
项和为
;数列
满足
(
,
).
(1)求数列
的通项公式;
(2)①试确定
的值,使得数列
为等差数列;②在①结论下,若对每个正整数
,在
与
之间插入
个2,符到一个数列
.设
是数列
的前
项和,试求满足
的所有正整数
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/065054f4e163585d630aa42cb6323a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a425978da20cebf8c4c63953579e7b35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82d7e880a95e466842f0b74d7a934f0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4a4465705237c08e4e05d849cb28d0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b49209ef2a8dc17863e55481771927a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f4404a574eb10c3b91db75b240f60c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf96eb314fae06a3ff0d52583edecb31.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/065054f4e163585d630aa42cb6323a3e.png)
(2)①试确定
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08075b3b73dd2609baad69a496fdd9a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4a4465705237c08e4e05d849cb28d0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15befbdad977723a86194979c675ee5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f255d0395fba51ca2d44293cca42e0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6874e652d72e4b95606f00dc12b69644.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/233427826eb2233641fc3a9805f6d206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60cc13eb1ce95c072b93a7d52f5b8324.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60cc13eb1ce95c072b93a7d52f5b8324.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a425978da20cebf8c4c63953579e7b35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e9e1914d3bc920fa37e7cff3085e938.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab4717e4827480f0f6f4ded85e52eab.png)
您最近一年使用:0次
2018-05-05更新
|
841次组卷
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3卷引用:专题5-3数列求和及综合大题归类-1