在等比数列
中,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deac43ca6faa7937931a3e0ad9cb1744.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0382b4a2ab0657d2d6830bb6be2b17b6.png)
A.![]() | B.2 | C.![]() | D.1 |
更新时间:2022-12-06 16:51:02
|
【知识点】 等比中项的应用
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单选题
|
容易
(0.94)
名校
【推荐1】已知实数
依次成等比数列,则实数
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/181fde179461f4de917f40e00392521b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.3或-3 | B.3 | C.-3 | D.不确定 |
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单选题
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容易
(0.94)
名校
【推荐2】在等比数列
中,已知
,
,则公比
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9b6e51986fe5d7a7265e0e93adcb4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9996864311f03f98e1601b720495877b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0d99fef1aa4dbcc6dc7b30b7d2c9a9.png)
A.![]() | B.![]() | C.2 | D.![]() |
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