名校
1 . 已知等差数列
的前
项和为
数列
是等比数列,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd087af6b447cd2eee808eb6e03cc8a6.png)
(1)求数列
和
的通项公式;
(2)若
设数列
的前
项和为
求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10b328845a4b1881eee38084d5501224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/117464f527849ab995858aaa20f4175b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd087af6b447cd2eee808eb6e03cc8a6.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1402af20a63c57541a3aa3809f9860e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f568d92986e9a79c9892cafee6bec06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/129d27b913ae4a0cbf3c5acf837d2bbb.png)
您最近一年使用:0次
名校
2 . 数列
定义为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbb5a74f00e0606110e0401d758a7853.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4028269d426a181425caf8be4a7d4a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbb5a74f00e0606110e0401d758a7853.png)
您最近一年使用:0次
2019-09-23更新
|
471次组卷
|
3卷引用:上海市上海中学2018-2019学年高一下学期期末数学试题
上海市上海中学2018-2019学年高一下学期期末数学试题上海市上海中学2018-2019学年高二下学期期末考试数学试题(已下线)专题7.17 数列与三角函数的综合-2022届高三数学一轮复习精讲精练
名校
3 . 已知无穷数列
,
是公差分别为
、
的等差数列,记
(
),其中
表示不超过
的最大整数,即
.
(1)直接写出数列
,
的前4项,使得数列
的前4项为:2,3,4,5;
(2)若
,求数列
的前
项的和
;
(3)求证:数列
为等差数列的必要非充分条件是
.
![](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/5edf900c810371fb21297c15f86d8743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31ac1def558351e2e3ed1235c570530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394d8b602b39602deee15b24181d1786.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.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/6812fe767ad55ac33946ca7ac80fa73e.png)
(1)直接写出数列
![](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/57ef6d44448092ebdb9e4a49d866a749.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf6ec9a174e3792ce1a40310a21c378b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43f41be870e84c819362787849770519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e5e69a1736fce183c0227c991c14810.png)
(3)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5c25b07fe756e6c37a703ca4a69fca8.png)
您最近一年使用:0次
名校
4 . 已知数列
满足
,
,
,记数列
的前
项和为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06fbdd2e3efbef1ff014df55b242eced.png)
________ .
![](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/9c9b6e51986fe5d7a7265e0e93adcb4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d3d92e75ba2f73786034ba271b6ab02.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/06fbdd2e3efbef1ff014df55b242eced.png)
您最近一年使用:0次
2019-09-23更新
|
2363次组卷
|
4卷引用:上海市延安中学2018-2019学年高一下学期期末数学试题
上海市延安中学2018-2019学年高一下学期期末数学试题上海市黄浦区2017-2018学年高一下学期期中终调研测试数学试题(已下线)考点20 递推公式求通项(第2课时)讲解-2021年高考数学复习一轮复习笔记(已下线)专题一 求通项公式-2020-2021学年高二数学新教材同步课堂精讲练导学案(人教A版2019选择性必修第二册)
名校
5 . 数列
的通项公式
,其前
项和为
,则
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c06dd07bcdcf34c4cbeb9a07462407e2.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/7dbaa389d7a95763ccd960130e7e70e7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
6 . 已知数列
的通项公式为
,
是其前
项和,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bca8f26c7e2cf5c7c4eaf39b089ae52.png)
_____ .(结果用数字作答)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1705c273d0c3edc7666cead63658b4c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bca8f26c7e2cf5c7c4eaf39b089ae52.png)
您最近一年使用:0次
名校
7 . 已知数列
满足:
,
,
.
(1)求
、
、
;
(2)求证:数列
为等比数列,并求其通项公式;
(3)求和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca821f4308823563b0c7187a2e6d616f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeb3985a508c39462365428b00bc592d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
(2)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
(3)求和
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca8dc712cb778eead25f48ee558f78d9.png)
您最近一年使用:0次
2019-07-08更新
|
570次组卷
|
3卷引用:上海市闵行区七宝中学2018-2019学年高一下学期期末数学试题
名校
8 . 已知数列
中,其前
项和为
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4e70b360f988fdbd92300ab22c4613.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.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/e06549637db80bf63f60f24897cccf97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4e70b360f988fdbd92300ab22c4613.png)
您最近一年使用:0次
2019-07-08更新
|
539次组卷
|
2卷引用:上海市闵行区七宝中学2018-2019学年高一下学期期末数学试题
9 . 设数列
的通项公式为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36c255c1ec56544fc57d1287b5125cc.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cdca54ebacdfba52989eea7d36a74b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36c255c1ec56544fc57d1287b5125cc.png)
您最近一年使用:0次
2019-07-08更新
|
314次组卷
|
3卷引用:上海市闵行区七宝中学2018-2019学年高一下学期期末数学试题
名校
10 . 已知递增的等差数列
满足:
,
.
(1)求数列
的通项公式;
(2)设数列
对任意正整数
都满足
,求数列
的前
项的和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/678f44af181faa2c2db02e1417f7c461.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d53e41a0375ee08a011ff249226b7aba.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(2)设数列
![](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/d7a1ba5f195b8ca43f1c299aeee30561.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/08eb71ecf8d733b6932f4680874dbbf3.png)
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