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解题方法
1 . 已知数列
的通项公式为
,等比数列
满足
,
.
(1)求数列
的通项公式;
(2)记
,
的前
项和分别为
,
,求满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90beabdaa7194b069eac5a6c09ee507a.png)
的所有数对
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ff1c33b81ac2f065d37faef37504bb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0522edc4e89f72f6e6c270e4ca1512b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d1d8d7860ec08b12d6511d2c9861e6.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.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/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90beabdaa7194b069eac5a6c09ee507a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/585a35898a8b438a56de22db79d56ec6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dd5d284a947adfd658cfdc2bc24b5d1.png)
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