已知数列
和
均为等差数列,且
为定值,若
,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/659dbe6ae4b4ef812aa0294026fc5748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9140f0a21bab8a35fe41485dde1e2086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f37c41b3d37ebff1242f840b5fe0c0.png)
A.56 | B.72 | C.88 | D.104 |
22-23高三下·湖南·阶段练习 查看更多[2]
湖南省新高考教学教研联盟2023届高三下学期3月第一次联考数学试题(已下线)专题22 等差数列基本量的计算及等差数列的性质(期末选择题22)-2023-2024学年高二数学上学期期末题型秒杀技巧及专项练习(人教A版2019)
更新时间:2023-03-19 07:04:35
|
【知识点】 等差中项的应用
相似题推荐
单选题
|
较易
(0.85)
【推荐1】已知等差数列1,
,等比数列3,
,
则该等差数列的公差为 ( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d2d454cff428a31d724790d345d3d55.png)
则该等差数列的公差为 ( )
A.3或![]() | B.3或![]() | C.3 | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
解题方法
【推荐2】等比数列
满足
,且
,
,
成等差数列,则数列
的前10项和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252de0a549286d1b1721ae96d5832654.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a03fee94205c63211128cbadfa17b810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/478e5abb0d8b335bedffa548968eb1e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.10 | B.20 | C.256 | D.510 |
您最近一年使用:0次