名校
1 . 若无穷等差数列
的公差为
,则“
”是“
,
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ce64685821c3e55c07f151996ca8c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c058454cf4a80d4b57771946c5ab2fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5a0a5258424503e6ad413300bf6936.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2023-11-08更新
|
1094次组卷
|
10卷引用:山东省烟台市2023-2024学年高三上学期期中数学试题
山东省烟台市2023-2024学年高三上学期期中数学试题北京市第一六一中学2023届高三上学期期中考试数学试题(已下线)模块二 数列 不等式-1(已下线)专题14 数列的基本量计算【练】(已下线)第一篇 “必拿”选择前5填空前2 专题14 数列的基本量计算【练】山东省日照市2024届高三上学期期末校际联合考试数学试题北京市良乡附中2022-2023学年高二6月月考数学试题北京市丰台区怡海中学2023-2024学年高二上学期12月月考数学试题安徽省芜湖市芜湖一中2023-2024学年高二上学期12月教学质量诊断测试数学试题(已下线)4.1.2 数列的概念(第2课时)(分层作业)(3种题型分类基础练+能力提升练)-【上好课】高二数学同步备课系列(人教A版2019选择性必修第二册)
2 . 已知等差数列
是递增数列,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30eb42578f654fb61e826026d2199751.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392f32809fce30e344e4b14c0d1c55d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1928c254cfada1f75a5cd1e34db5a63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30eb42578f654fb61e826026d2199751.png)
您最近一年使用:0次
3 . 已知公差不为
的等差数列
,满足
,
,记
,其中
表示不超过
的最大整数,如
,
.
(1)求
的通项公式;
(2)求数列
的前
项和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6888affdc0c9e552c67a19c7027130e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ad47c29f407cf3499f7069d643a9e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/511bf0fe9bd2b7016e88adba24828dc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59c8fc785c7c5209002ddc83a6ae38f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/782662583701c851ff100273f70167a8.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d01dd350dc95f42f1883e0cc7aae084.png)
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4 . 已知等差数列
中,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7999465d0e871febde66296a0cbf058c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/260a7d0829cafc9d4ac0b4d04f728006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc13d4e5d6d16d5675cf4d83392ab486.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7999465d0e871febde66296a0cbf058c.png)
A.![]() | B.0 | C.![]() | D.![]() |
您最近一年使用:0次