名校
解题方法
1 . 已知数列
满足
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c5cad9aa4006c1d61d3634e24ce22a0.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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3卷引用:重庆市乌江新高考协作体2023-2024学年高二下学期5月期中考试数学试题
2 . 已知数列
满足:
,其中
,数列
的前
项和是
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd52fc5f5073fa0a0a3139ede263fc7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19339e3904e9541ff26b30ae5f1242b2.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)
A.当![]() ![]() |
B.当![]() ![]() ![]() |
C.当![]() ![]() |
D.当![]() ![]() |
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名校
3 . 我们把直线
叫做椭圆
的上准线.已知一列椭圆
的上、下焦点分别是
,若椭圆
上有一点
,使得
到上准线
的距离
是
与
的等差中项,
(1)当
取最大值时,求椭圆
的离心率;
(2)取
,并用
表示
的面积,请探索数列
的单调性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8b328e68bba08366dc213e67d9a54f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fb223b8777ab973970491bf0dcc6806.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17950d83a4ed7149eb127cc43b7b6e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/413feb44d12055f706a368f2bbf1f63e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc31dcdb99754fc452ff2b92a2fb8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7c5e7bd6bac51402ffa04b4144ec78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82e260b088f071983f254ce8f5163fcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2d8758c0c03c8b02c17d1820705182c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3daa7cb80751a3205e67ebf16218886.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc31dcdb99754fc452ff2b92a2fb8c9.png)
(2)取
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b950f01934279f704fae817976d19b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff06044e6d8c51fd92126e9634bcc255.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/846fa57d92d6ad44d6a0cafad1e71ed4.png)
您最近一年使用:0次
4 . 在数学中,
.已知数列
满足
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07dccbc95164b4318b6aaf55b8feff41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212d2203d7634d2bf7f85d791cc21e34.png)
A.数列![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
5 . 设数列
满足
,
,记数列
的前n项和为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e636cb16fed46289f92b91910986cdf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13a6e1d671215fc96e4bee3541d1096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e86a2ba89a04ea35aac8dcf4f3902064.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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3卷引用:重庆市第一中学校2023-2024学年高二上学期期末模拟数学试题
6 . 已知数列
满足
,
,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b293ef8b6f41032dd6016ce4defd9eab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
A.数列![]() | B.![]() |
C.![]() | D.![]() |
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2023-02-13更新
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3卷引用:重庆市南开中学校2022-2023学年高二下学期开学考试数学试题
重庆市南开中学校2022-2023学年高二下学期开学考试数学试题山东省德州市第一中学2023-2024学年高二下学期3月月考数学试题(已下线)微考点4-2 新高考新试卷结构数列的通项公式的9种题型总结
名校
解题方法
7 . 单增数列
满足
,点
,对于任意
都有
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3933ed900733d18aa0c0b634083e82b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02fbccbd4e1e77e6eb46896fa701325e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5cf9c12181dd8683944b2b30bf8e08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17529ccc1c8d773f8490206f9a28dc71.png)
A.数列![]() ![]() |
B.数列![]() ![]() |
C.![]() ![]() |
D.四边形![]() ![]() |
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名校
解题方法
8 . 设
是数列
的前
项和,
,若不等式
对任意
恒成立,则
的最小值为( )
![](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/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae9f834d8d546e7e5f9407724f56cc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b515f1c1e7d53ea98217031df2f460ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28652e52c0b02a343e618935ea625cbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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|
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8卷引用:重庆市第八中学校2023-2024学年高二下学期入学适应性训练数学试题
重庆市第八中学校2023-2024学年高二下学期入学适应性训练数学试题陕西省延安市2022-2023学年高二上学期期中理科数学试题湖南省长沙市四校2022-2023学年高二上学期期中联考数学试题(B卷)陕西省西安市第七十五中学2022-2023学年高二上学期期中理科数学试题广东省佛山市三水区三水中学2022-2023学年高二下学期第一次月考(3月)数学试题(已下线)专题6-1 数列函数性质与不等式放缩(讲+练)-1(已下线)【练】专题6 与数列有关的不等式恒成立问题(已下线)【练】专题1 数列的单调性问题
名校
解题方法
9 . 设数列
满足
,数列
的前
项和为
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a324ac0c12b4c49ab1f1afbce3a86592.png)
(1)求证:数列
为等差数列,并求
的通项公式;
(2)设
,若对任意正整数
,当
时,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6084004a91a41ef56e7621714fa2687.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/a324ac0c12b4c49ab1f1afbce3a86592.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82c65a855b1eed9c43e6829f6c3bffb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0a5da070ebb3fa29e0d7b402db804b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/734a6de235c7c5205eb3d81109f04abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d51d58e0f1ded5bd4d223c6e620069de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2022-02-22更新
|
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4卷引用:重庆市西南大学附属中学校2021-2022学年高二(广延班)下学期第三次月考数学试题
10 . 数列
依次为:1,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,…,其中第一项为
,接下来三项均为
,再接下来五项均为
,依此类推.记
的前
项和为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1985174e05ad371e13cf24d244423da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1985174e05ad371e13cf24d244423da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1985174e05ad371e13cf24d244423da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1985174e05ad371e13cf24d244423da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1985174e05ad371e13cf24d244423da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1985174e05ad371e13cf24d244423da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1985174e05ad371e13cf24d244423da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/158b045c6172c4178d7aa52083e1489f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/158b045c6172c4178d7aa52083e1489f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5296c0056db0e2b5331c9b9a6d45962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.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)
A.![]() | B.存在正整数![]() ![]() |
C.![]() | D.数列![]() |
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2021-09-08更新
|
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7卷引用:重庆市荣昌中学校2022-2023学年高二下学期第一次月考数学试题