名校
1 . 已知数列
的前
项和为
,
,
,且对于任意
,
,满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1741e9b4bf47139c7363dff730d1c08.png)
,则
的值为__________
![](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/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9b6e51986fe5d7a7265e0e93adcb4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e468312d09c6563c9094b710a35a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1741e9b4bf47139c7363dff730d1c08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e0f6a0f7f5a1e1236040bd732b8d04e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3cf6f2bbe20a404fea41a4d2b1c4c7.png)
您最近一年使用:0次
2019-04-15更新
|
564次组卷
|
4卷引用:【全国百强校】四川省阆中中学2018-2019学年高一下学期期中考试数学(文)试题
2 . 已知数列
满足
,若
为数列
的前
项和,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8228283efaccfedc14911a97937fb8de.png)
_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70aa62d5dd947ec4d99ad3ef597937d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b6da7464d104521d6e068172f01504.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b708c8dcb2d66eb2ce0b3718a9cd924a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70aa62d5dd947ec4d99ad3ef597937d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8228283efaccfedc14911a97937fb8de.png)
您最近一年使用:0次
3 . 数列
满足
,
,则数列
的通项公式为______ .
![](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/50c58779f23121b313f0d3d9adf36433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
您最近一年使用:0次
2020-07-05更新
|
382次组卷
|
2卷引用:四川省南充高中2019-2020学年高一下学期第一次月考试题数学(理科)试题
名校
4 . 设数列
的前n项和为
,若
,则
的值为______ .
![](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/5bcc621b8b735926f6bd6bc17f94ea16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a27c112387e56c976489fa484c0d48f.png)
您最近一年使用:0次
2020-08-06更新
|
342次组卷
|
5卷引用:四川省南充高级中学2020-2021学年高二下学期入学考试数学(文)试题
四川省南充高级中学2020-2021学年高二下学期入学考试数学(文)试题湖南省衡阳市2020届高三下学期三模数学(理)试题黑龙江省牡丹江一中2020-2021学年高二上学期开学测试数学试题安徽省滁州市明光中学2020-2021学年高二上学期开学考试数学试题(已下线)专题05 数列-【备战高考】2021年高三数学高考复习刷题宝典(填空题专练)
名校
5 . 在等差数列
中,
,则数列
的前7项和为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7750dc2a3cd3efee59ac25183763d76a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
您最近一年使用:0次
2020-07-25更新
|
322次组卷
|
2卷引用:四川省绵阳市江油中学2020-2021学年高一下学期期中数学(文)试题
6 . 用
表示正整数
所有因数中最大的那个奇数,例如:
的因数有
,
,
,则
,
的因数有
,
,
,
,则
.计算![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ec2957cb7aa9538fcf375d6b1998d01.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ef5f56f08fd326e87c0b607a5c89ba7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d02ea8c4988c5c28ab93f0d70fb55a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d02ea8c4988c5c28ab93f0d70fb55a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81ee31cc027ba6ae0ad5f564ed1e0b84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f83abb38950a79d3c10da77b7e2798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ec2957cb7aa9538fcf375d6b1998d01.png)
您最近一年使用:0次
7 . 有两个等差数列
及
由这两个等差数列的公共项按从小到大的顺序组成一个新数列,则这个新数列的各项之和为________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995e28479d34d8213abfdb8e5860b48a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d818374c237ddd87fbbb17d83ed52a50.png)
您最近一年使用:0次
2016-12-03更新
|
808次组卷
|
10卷引用:2015届四川省雅安中学高三开学考试理科数学试卷
名校
8 . 若数列
的首项
,且
;令
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99261c8710224e047dfc21bfd55aabde.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f0abbc453bbe66c0ee6cc56ae23f12f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94e22de952e2b63bb9a750a77200d77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99261c8710224e047dfc21bfd55aabde.png)
您最近一年使用:0次
2017-02-08更新
|
1528次组卷
|
8卷引用:四川省凉山州宁南中学2023-2024学年高二上学期期末模拟数学试题(二)
名校
9 . 已知等差数列
,满足
,其中
,
,
三点共线,则数列
的前
项和![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b11e2bf8d65c24fc845446a32d881bd4.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0d3c0f812c6a5ecdc59de165030ccc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c748e40ba21ac5063d3bccaa57ef278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b11e2bf8d65c24fc845446a32d881bd4.png)
您最近一年使用:0次
2019-06-12更新
|
473次组卷
|
3卷引用:【校级联考】四川省广元市万达中学、八二一中学2018-2019高一下学期期中考试数学试题
解题方法
10 . 等差数列
的前
项和为
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dbd9ff686703cad03aa383e5fec21.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/9b2395ccadbeb8353ead0d573ca02c25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dbd9ff686703cad03aa383e5fec21.png)
您最近一年使用:0次
2017-03-30更新
|
1362次组卷
|
4卷引用:四川省泸州市合江县马街中学校2023-2024学年高二上学期期末数学试题
四川省泸州市合江县马街中学校2023-2024学年高二上学期期末数学试题2017届江西省鹰潭市高三第一次模拟考试数学(文)试卷上海市北虹高级中学2018-2019学年高一下学期期末考试数学试题(已下线)江西省鹰潭市2017届高三第一次模拟考试文数试题