已知等差数列
的前n项和为
,对任意的
,均有
成立,则
的值的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1505d56f0b35fe7f2de1fe1888036e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea6dbcf6c757d343c9a910c03bd5c2d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d64144c59e1cb3adad64e04030e0c34c.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
23-24高三上·重庆渝中·阶段练习 查看更多[6]
重庆市巴蜀中学校2024届高三上学期适应性月考(三)数学试题(已下线)2024年高三模拟押题卷01(已下线)第03讲 4.2.2等差数列的前 项和公式(3)(已下线)黄金卷01(已下线)专题09 数列的通项公式、数列求和及综合应用(练习)-2(已下线)黄金卷03
更新时间:2023-10-23 07:37:07
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【知识点】 根据等差数列前n项和的最值求参数
相似题推荐
单选题
|
适中
(0.65)
解题方法
【推荐1】设
为等差数列
的前
项和,若
,
,则当
最大时正整数
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38dac2f63c0152c8cfbf68ec5b64aaeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa6894389fafb52926d38eb1bf0d181f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐2】设等差数列
的前n项和为
,且
,
,则
取最小时,
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5ea3c2b204f2260dacb4f2162ae9489.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74498acf95969f98f7c279e26f68a351.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
A.4045 | B.4044 | C.2023 | D.2022 |
您最近一年使用:0次