2022高三·河北·专题练习
解题方法
1 . 已知数列
是等差数列,数列
是等比数列,且满足
,
,则
( )
![](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/57b99d2575fc03867146818de3b3495e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ea30fc5de2d17a9da35a85efd1e4ec2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e6273371f6b11fe30a06b9c83602d0.png)
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