名校
解题方法
1 . 已知数列
满足
,
,数列
满足
,
.
(1)求证:
为等差数列,并求
通项公式;
(2)若
,记
前n项和为
,对任意的正自然数n,不等式
恒成立,求实数
的范围.
![](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/629e54076b5754d3309da6cdcebfefc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59dd6c97d2ee3e74ba5730f1cbcc1d43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4e3830d9569f9da36b03a77f52dd657.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25cbe66fe4e84b4022721122baab4a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/175005738672c8c1f431aac6333ab94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb2f79d9b9a9788d82009914a9fa2a91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2024-04-16更新
|
943次组卷
|
4卷引用:上海市同济大学第一附属中学2023-2024学年高二下学期期中考试数学试题
上海市同济大学第一附属中学2023-2024学年高二下学期期中考试数学试题(已下线)模块二 难点痛点归纳与突破专题1 数列中最值、范围问题【高二人教B版】(已下线)模块二 专题2 数列中最值、范围问题【高二北师大版】广东省珠海市第二中学2023-2024学年高二下学期期中考试数学试题
名校
解题方法
2 . 已知数列
的前n项和为
,且
.
(1)求
的通项公式:
(2)若
,
的前n项和为
,证明:
.
![](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/d8f0b434ccd94f4badb2ab572b7ba012.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c08f6a0e275187087a241cf77b0ffded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91f18d684efb5a9375189ecec7cdb45.png)
您最近一年使用:0次
2023-11-28更新
|
1116次组卷
|
2卷引用:山东省实验中学2024届学年高三第二次诊断考试数学试题
名校
解题方法
3 . 已知数列{
}为等差数列,
,
,数列{
}的前n项和为
,且满足
.
(1)求{
}和{
}的通项公式;
(2)若
,数列{
}的前n项和为
,且
对
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2693734765399876e9e93cdb110231c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f86cc1dbf9768a7f7a487517ea7224d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f61d6a6b7579718b63724b734b9c1278.png)
(1)求{
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9221c0c92a526f65533cdc5400767af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59e7c7a84a4bdb959e95536d0404ceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e89c08f1032d49b57607e3af5c2f294f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
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2022-06-03更新
|
3196次组卷
|
9卷引用:湖南省长沙市长沙县第一中学2022届高三下学期押题卷4数学试题
湖南省长沙市长沙县第一中学2022届高三下学期押题卷4数学试题(已下线)第06讲 第六章 数列综合测试(测)-2023年高考数学一轮复习讲练测(新教材新高考)(已下线)专题18 等差数列及其求和(讲义)-2023年高考数学一轮复习精讲精练宝典(新高考专用)(已下线)专题27 数列求和-1(已下线)专题12 数列综合辽宁省沈阳市辽中区第二高级中学2021-2022学年高二下学期期末考试数学试题(已下线)第7讲 数列求和9种常见题型总结 (1)(已下线)模块四 专题2 期末重组综合练(辽宁)(高二人教B)广东省深圳市光明区光明中学2023-2024学年高二下学期期中考试数学试题
4 . 数列
满足:
或
.对任意
,都存在
,使得
,其中
且两两不相等.
(1)若
,写出下列三个数列中所有符合题目条件的数列的序号;
①
;②
;③![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6682443f327ff60ddf3e91cbe7821d99.png)
(2)记
.若
,证明:
;
(3)若
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32034ab9eaa06e450e27d87e999ea9e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bad657749a0e222333076c72bf949970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fdb0c5b7a3e183c714fad838d246d29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c639c7e5f1e7e7ee5d5ee2f30b155bb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b056a90a2751f04ba5fff3dc5c1d0674.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86c4d0383577207858e39b4b19b0853e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/454cc6ac47d35ebc2b34af6a8047a44e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5305ea58d22efe7136d404b1d44634.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e44f2f5b6cab3a33e24de2502ac0c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6682443f327ff60ddf3e91cbe7821d99.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6559598727fb120a5cdbf4f15510615d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/743b4f6fde34464397b010cb45eabb7d.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662276a5012893d881e7d1d882b5ea4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
2022-05-29更新
|
536次组卷
|
9卷引用:北京市西城区2018届高三期末考试理科数学试题
名校
解题方法
5 . 已知数列
中,满足
对任意
都成立,数列
的前n项和为
.
(1)若
是等差数列,求k的值;
(2)若
,且
是等比数列,求k的值,并求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21d1ba8a0a584476f993ca55aaa0fbc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48adb8a59b5c02fad5eada1b35171cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa0dc13236eaa2bd0cdc0f24beea11fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
您最近一年使用:0次
2022-05-27更新
|
1719次组卷
|
4卷引用:辽宁省辽南协作校2022届高三第三次模拟考试数学试题
解题方法
6 . 已知数列
满足:
,
,令
,
是数列
的前
项和,若
对任意的
恒成立,则整数
的最大值为( )
![](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/05989f5434589435ca51b6d4078caa08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23a8f7a7de5903102ac31245b0a2a219.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73d5152253ca06c6d0cd5025e017c43e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 已知数列
满足
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f5eb9b8f893dd71876349ad40724550.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59b33897f206bf6e08dc4460aad97288.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad2da0ff9dc73d62f8162fc3de186150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f5eb9b8f893dd71876349ad40724550.png)
您最近一年使用:0次
2022-04-29更新
|
639次组卷
|
3卷引用:重庆市西南大学附属中学校2021-2022学年高二下学期期中数学试题
21-22高三上·北京·期中
名校
解题方法
8 . 数列
满足:
或
对任意i,j,都存在s,t,使得
,其中
且两两不相等.
(1)若
时,写出下列三个数列中所有符合题目条件的数列序号;①
;②
;③
;
(2)记
,若
证明:
;
(3)若
,求n的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e75e942e95a7a0b97d942f5443d1fc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bad657749a0e222333076c72bf949970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47308c0fff29949ed1fd6c6b5d69a9b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86c4d0383577207858e39b4b19b0853e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e773df13fb21901539facef835181a8.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5305ea58d22efe7136d404b1d44634.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e44f2f5b6cab3a33e24de2502ac0c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3e0a77cbe1ba74715e7c30f357b932c.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36663c33a0236d40df9ffebb911ff90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/743b4f6fde34464397b010cb45eabb7d.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88a5db4d5e02aa7bf2c58ffb61feee90.png)
您最近一年使用:0次
2021-11-27更新
|
875次组卷
|
5卷引用:北京市第四中学2022届高三上学期期中考试数学试题
(已下线)北京市第四中学2022届高三上学期期中考试数学试题(已下线)专题04 数列(数学思想与方法)-备战2022年高考数学二轮复习重难考点专项突破训练(全国通用)北京景山学校2022届高三适应性考试数学试题北京市顺义牛栏山第一中学2023-2024学年高三上学期期中考试数学试题(已下线)北京市第五十五中学2023-2024学年高二上学期期末模拟数学试题
名校
解题方法
9 . 设正整数
,其中对于任意
,
. 函数
满足
.则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06df740022c2c594bd0c069626e2cddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560d779b6110e79275749b1911a557f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d5a20ff43995563aa4638efdf46359c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b8de661bf5d2d2ab1fa2bd97babb99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092d08b0a38fd9bef76f7168ce1fc9dc.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
10 . 十二平均律是我国明代音乐理论家和数学家朱载堉发明的.明万历十二年(公元1584年),他写成《律学新说》,提出了十二平均律的理论.十二平均律的数学意义是:在1和2之间插入11个正数,使包含1和2的这13个数依次成递增的等比数列.依此规则,插入的第四个数应为( )
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-11-03更新
|
766次组卷
|
11卷引用:湖北省荆州市2019-2020学年高三上学期质量检查(1)数学(理)试题
湖北省荆州市2019-2020学年高三上学期质量检查(1)数学(理)试题(已下线)第二章+数列(基础过关)-2020-2021学年高二数学单元测试定心卷(人教版必修5)(已下线)第四章++数列1(基础过关)-2020-2021学年高二数学单元测试定心卷(人教A版2019选择性必修第二册)江苏省苏州市张家港市2020-2021学年高三上学期12月阶段性调研测试数学试题(已下线)数学与音乐江苏省兴化市、泗阳县2021-2022学年高三上学期12月教学效果测试数学试题江苏省镇江市丹阳高级中学2021-2022学年高二上学期期末数学试题陕西省西北农林科技大学附属中学2022-2023学年高二上学期期中文科数学试题陕西省咸阳市礼泉县第二中学2022-2023学年高二上学期期中数学试题陕西省咸阳市礼泉县第一中学2021-2022学年高三上学期期中理科数学试题江苏省镇江市扬中市第二高级中学2022-2023学年高二上学期期末考前热身数学试题