1 . 等差数列
中,
为
的前n项和,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e4487468ab2823d6dbf7f0ebd2eb38.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13a6e1d671215fc96e4bee3541d1096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9651204c54475c2e8cda8d0a6eeba177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e4487468ab2823d6dbf7f0ebd2eb38.png)
您最近一年使用:0次
名校
解题方法
2 . 已知等差数列
的前n项和为
,
,
,
,则实数m的值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/affef23ca8d0e54d73eaeb8b651d6ac4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6cf2e0f3db57d74fcd92c2131713f9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac8e84551ed895469c0111daa01ca066.png)
您最近一年使用:0次
名校
3 . 已知等差数列
的前n项和为
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adf14ebc775db2414a5a960badca8960.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/232faf3b3aa63b4708168a3883dc2ec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adf14ebc775db2414a5a960badca8960.png)
您最近一年使用:0次
2022-12-16更新
|
1261次组卷
|
5卷引用:四川省南充市2023届高三上学期高考适应性考试(一诊)文科数学试题
2020高三·全国·专题练习
名校
解题方法
4 . 等差数列
的前
项和为
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d132f9d2fae61c88f915d3ca64a7cc9.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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87dd9f50b692e7e44e5779eb7436aaf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d132f9d2fae61c88f915d3ca64a7cc9.png)
您最近一年使用:0次
2020-08-17更新
|
2593次组卷
|
3卷引用:四川省南充市白塔中学2020-2021学年高三上学期期中数学文科试题
四川省南充市白塔中学2020-2021学年高三上学期期中数学文科试题(已下线)考点18 等差数列(讲解)-2021年高考数学复习一轮复习笔记黑龙江省哈尔滨市第一中学校2020-2021学年高三上学期期中数学试题
5 . 已知
为等差数列
的前n项和,若
,则数列
的通项公式为___________ .
![](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/bf89e90a6e64c3c8ee46a3bb57733a36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
您最近一年使用:0次
2022-05-19更新
|
1094次组卷
|
6卷引用:四川省南充市南部县南部中学2022-2023学年高三上学期第一次月考(文科)月考数学试题
名校
解题方法
6 . 等差数列
中
,
. 若集合
中仅有2个元素,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1cfff6fef1f7f62ce30f599cc22cdf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9969f8f56f6f7fe32c120b98a3c0ac74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/033c52d3d1e7608c4c72c5bb26269c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2022-03-17更新
|
516次组卷
|
4卷引用:四川省南充高级中学2021-2022学年高三第六次月考数学(理)试题
四川省南充高级中学2021-2022学年高三第六次月考数学(理)试题陕西省西安交通大学附属中学2022届高三下学期第七次模拟考试理科数学试题(已下线)1.1 集合(精练)-【一隅三反】2023年高考数学一轮复习(提升版)(新高考地区专用)(已下线)专题1-1 集合与常用逻辑用语-1
7 . 数列
满足
,前16项和为668,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/7d9cea59d62baee378f290c30727139a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7999465d0e871febde66296a0cbf058c.png)
您最近一年使用:0次
名校
8 . 在等差数列
中,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccacf1bd94cbbdc108ec396489c6c1f3.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10efc78f08d7374ac3c896b4452adf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccacf1bd94cbbdc108ec396489c6c1f3.png)
您最近一年使用:0次
2018-04-15更新
|
2224次组卷
|
4卷引用:四川省南充市白塔中学2020-2021学年高一下学期4月月考数学试题
9 . 设等差数列
的前
和为
且
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a162b1350ec6abb8dc8b210d69c06b78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd94bd4a22665e5973be2271a5a31102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
您最近一年使用:0次
2020高三·江苏·专题练习
名校
解题方法
10 . 已知函数
,把函数
的图象与直线
交点的横坐标按从小到大的顺序排成一个数列
,则数列
的前
项和![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2864e2ec3416cc4c081ac1f71a0af.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ad6b7956cf487785a610b9f9115e515.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.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/04c2864e2ec3416cc4c081ac1f71a0af.png)
您最近一年使用:0次
2020-05-27更新
|
733次组卷
|
4卷引用:四川省南充市南充市白塔中学2020-2021学年高三上学期期中数学试题
四川省南充市南充市白塔中学2020-2021学年高三上学期期中数学试题(已下线)数学-2020年高考数学押题预测卷02(江苏卷)《2020年高考押题预测卷》广西柳城县中学2020届高三6月加强考数学(文科)试题2020年浙江省名校高考押题预测卷(一)