名校
1 . 已知等差数列
(公差不为零)和等差数列
的前
项和分别为
,如果关于
的实系数方程
有实数解,那么以下2023个方程
中,有实数解的方程至少有( )个
![](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/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7782e562d4ef2fe70a0f70f9d8b498f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71fa32e4f59e269561478a3c140b768f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33fee58803baf3b6b8d7fed30c8dd244.png)
A.1009 | B.1010 | C.1011 | D.1012 |
您最近一年使用:0次
2022-11-11更新
|
936次组卷
|
7卷引用:上海市格致中学2023届高三下学期3月阶段性测试数学试题
名校
2 . 已知数列
为严格递增数列,且对任意
,都有
且
.若
对任意
恒成立,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8385599f6b04b58b68ead153c6fe0c91.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1212caf5d0aab8b86deec66c92c2f891.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6978c2051e0a7305d2add555ff4646b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f678e7e04f2240adb433ed8e8ed40639.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20075e83fc6a0d0eb134f3820107e4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1212caf5d0aab8b86deec66c92c2f891.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8385599f6b04b58b68ead153c6fe0c91.png)
您最近一年使用:0次
2022-01-21更新
|
723次组卷
|
5卷引用:上海市同济大学第一附属中学2022-2023学年高二下学期期中数学试题
上海市同济大学第一附属中学2022-2023学年高二下学期期中数学试题(已下线)期末真题必刷压轴60题(22个考点专练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(沪教版2020必修第三册)上海市控江中学2021-2022学年高二上学期期末数学试题上海市行知中学2021-2022学年高二下学期3月月考数学试题(已下线)第02讲 等差数列(核心考点讲与练)-2021-2022学年高二数学考试满分全攻略(人教A版2019选修第二册+第三册)