公比不为1的等比数列
满足
,若
,则正整数m的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6245ae16d3d44e57898823c9bd92353d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de45996e6d8d75a9f136d0ec16b58ece.png)
A.11 | B.10 | C.9 | D.8 |
23-24高二上·广东·期末 查看更多[2]
更新时间:2024-01-30 10:30:59
|
【知识点】 等比数列下标和性质及应用
相似题推荐
单选题
|
较易
(0.85)
名校
解题方法
【推荐1】在等比数列
中,若
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e5aebfbfe53ab8e5eadafe4d90bfcf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6a1b565c2c1591871a509eb844481b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2da646fe585b651356727244757d4d0b.png)
A.1 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】已知数列
是等比数列,数列
是等差数列,若
,
,则
的值是( )
![](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/2fb1ccdc7701937757b118f2a12e2a78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa966ea2b2d0843adbf85ebb5ac8d1b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc156a7eb2f734b12c8c12f72507481.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次