名校
解题方法
1 . 已知数列
满足:
,且
.
(1)求证:
是等差数列,并求
的通项公式;
(2)是否存在正整数m,使得
,若存在,求出m的值;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50ada5be4490611aae7f00f5e5988bd2.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a44cfbb86a4eb76261c00ddc6bff181.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
(2)是否存在正整数m,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55fddf20dbe45c34efef5b2c3a709c0b.png)
您最近一年使用:0次
2022-05-26更新
|
1830次组卷
|
8卷引用:海南省海南中学2022届高三下学期第九次月考数学试题
海南省海南中学2022届高三下学期第九次月考数学试题江苏省南通市通州区金沙中学2021-2022学年高二下学期6月调研考试数学试题辽宁省沈阳市第二十中学2022-2023学年高三上学期一模考试数学试题江西省抚州市金溪县第一中学2023届高三上学期11月段考数学(文)试题(已下线)等差数列的概念(已下线)4.2.1 等差数列的概(2)(已下线)高二数学下学期第二次月考模拟试卷(选择性必修第二册,含数列和导数)-【题型分类归纳】2022-2023学年高二数学同步讲与练(苏教版2019选择性必修第二册)4.2.1 等差数列的概念练习
名校
解题方法
2 . 已知
是公差不为零的等差数列,
,且
、
、
成等比数列.
(1)求数列
的通项公式:
(2)设
.数列{
}的前
项和为
,求证:
.
![](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/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65fc200f10b97588a0c9896277c9c64.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/216876de04325fd250c38c485cbc34b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.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/fc1f5d407c0e99344ed5f0f5926c5d22.png)
您最近一年使用:0次
2022-02-21更新
|
397次组卷
|
2卷引用:海南省琼海市嘉积中学2021-2022学年高二下学期第一次月考数学试题
解题方法
3 . 已知等差数列
满足
,且
,
,
成等差数列.
(1)求数列
的通项公式;
(2)证明:数列
的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06dd3c3b45125d4b484e2894992610f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b2667a6c91b720ca9b42d092c776cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc858b7a95c5006a44067022da09f667.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
(2)证明:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32059f7b74b2eeef57f525f34637ecb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f63b998f4909841e47575281936b3f55.png)
您最近一年使用:0次
名校
4 . 数列
的前
项和
满足
.
(1)求证:数列
是等比数列,并求
;
(2)若数列
为等差数列,且
,
,求数列
的前
项
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b708c8dcb2d66eb2ce0b3718a9cd924a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5174e1d9a2e6ed107985cebb7cc169dc.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddb4a97e43f2d0ca1f982d6ee16ce803.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bfccafa83afe5ee21eab6ef2b2c8852.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2448cf72af76b810310e4cfb9818e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ce13c5e30bf8a71f0e1248b02a69e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d05201710afaf03630de3124ff5ec8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e74f3aa327713a6fb1dabd01083c84a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb26cd1601fe7e76e1e2dc0b4909324a.png)
您最近一年使用:0次
2019-04-14更新
|
1597次组卷
|
6卷引用:海南省海南中学2022届高三第十次月考数学试题
解题方法
5 . 已知
是一个单调递增的等差数列,且满足
,
,数列
的前
项和为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f393fed43b0e646af7041e188f031a30.png)
.
(1)求数列
的通项公式;(2)证明数列
是等比数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b44e84c378ba05c940d8e69b9c94c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e82b67d4c44a0adf7eb7907731ee9629.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/f393fed43b0e646af7041e188f031a30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62d5fa85887816de29bcff4f143e3f0c.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
您最近一年使用:0次
2016-12-03更新
|
1655次组卷
|
2卷引用:海南省琼中县2023届高三下学期统考数学试题(B)