等比数列
中,
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bb7147e313f9d9f67d19ecb5f499c05.png)
__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e51c8d2d4327f11dc6fa930c26867a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bb7147e313f9d9f67d19ecb5f499c05.png)
更新时间:2023-03-16 15:50:34
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【知识点】 等比数列下标和性质及应用
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【推荐1】设
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【推荐2】已知等比数列
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