1 . 已知
是由正整数组成的无穷数列,该数列前
项的最大值记为
,即
;前
项的最小值记为
,即
,令
(
),并将数列
称为
的“生成数列”.
(1)若
,求其生成数列
的前
项和;
(2)设数列
的“生成数列”为
,求证:
;
(3)若
是等差数列,证明:存在正整数
,当
时,
,
,
,
是等差数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddad3d9fdb5e9951b6a1c31f9a72a71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9d7fcd7b8817a82478bd872bc61a132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0a625b91e0eba33b107550ee2a1e2f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09b082619df0e06d2dcd83a3bc0fb04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfd9b9869da85bfffac7c01d7c34e35f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414f4f53b4ae5085836107278784e3ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/568ef2909bf624c3d346474741d226b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac7f82f00fe6163833431241820687ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/568ef2909bf624c3d346474741d226b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/568ef2909bf624c3d346474741d226b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4ef1643721ad2b804d4ee2ba1a091a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03b6a226d310f16ea311db851216e894.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/568ef2909bf624c3d346474741d226b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d7e9f86738335a22298559db41037a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84c29bfcb2e31e3c21967ede660eaa0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090426eb29836bc30c006b3739c08057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39222f0687c9124bddb35544bcc7798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e5531913e2f170465d8df01795cd51.png)
您最近一年使用:0次
2024-04-17更新
|
1596次组卷
|
10卷引用:湖北省荆州市沙市中学2024届高三下学期高考全真模拟数学试卷
湖北省荆州市沙市中学2024届高三下学期高考全真模拟数学试卷广东省梅州市2024届高三下学期总复习质检(二模)数学试题(已下线)数学(广东专用02,新题型结构)(已下线)5.2 等差数列和等比数列(高考真题素材之十年高考)(已下线)第4套 新高考全真模拟卷(二模重组)(已下线)压轴题05数列压轴题15题型汇总-1(已下线)第六套 艺体生新高考全真模拟 (二模重组卷)广西南宁市第三十六中学2024届高三下学期适应性训练数学试题(已下线)模块五 专题4 全真能力模拟4(人教B版高二期中研习)(已下线)模块三 专题2 新定义专练【高二下人教B版】
2 . 已知数列
满足
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060c880252326cb449d8253539d92aff.png)
(1)判断数列
是否是等比数列?若是,给出证明;否则,请说明理由;
(2)若数列
的前10项和为361,记
,数列
的前n项和为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390636a89883bd64bf8da9bf8654aff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060c880252326cb449d8253539d92aff.png)
(1)判断数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf33b2a94eae16760d746f9b4b8dbc.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04053ecf80b3bb9179c8baab47bf8dae.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/ffc0cf1f0a00718b95a2a4fffd11dd32.png)
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2023-08-20更新
|
2550次组卷
|
9卷引用:湖北省高中名校联盟2024届高三上学期第一次联合测评数学试题
真题
解题方法
3 . 已知m,n为正整数.
(1)用数学归纳法证明:当
时,
;
(2)对于
,已知
,求证
,
;
(3)求满足等式
的所有正整数n.
(1)用数学归纳法证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc3e5be1796493161a4df7e28a6f6b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d201fdbbff12486f31b5688fc0a0747e.png)
(2)对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/831608f09609c37f757f5bfcd01253f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/186c794ebbde3237056af29cb97778f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c70b3e66c0852233e54c1ba772fa97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b91f85fc4d2f3894351dd2c4d4f5c975.png)
(3)求满足等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a4cace6fc5c0f94904a33a643adadf.png)
您最近一年使用:0次
2022-11-09更新
|
1343次组卷
|
4卷引用:2007年普通高等学校招生考试数学(理)试题(湖北卷)
2007年普通高等学校招生考试数学(理)试题(湖北卷)(已下线)专题1 数学归纳法及其变种 微点1 数学归纳法(已下线)第二篇 函数与导数专题4 不等式 微点2 伯努利不等式江苏省苏州市吴中区2018-2019学年高二下学期期中数学(理)试题
名校
解题方法
4 . 对于问题“求证方程
只有一个解”,可采用如下方法进行证明“将方程
化为
,设
,因为
在
上单调递减,且
,所以原方程只有一个解
”.类比上述解题思路,则不等式
的解集是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c18c032d75893db45e61e6c4eb0d4e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c18c032d75893db45e61e6c4eb0d4e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49cfb1e9557770560280b5248ae2d0d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/856491b01dab707170d83a1bc4b1f257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933093b52cca887f597cbe22a5467b11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec65a2bec3d4296c613a80b3ae41d5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2197c1c9e5e09713fe45dc1e73edf509.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2022-08-07更新
|
928次组卷
|
7卷引用:湖北省孝感市新高考联考协作体2022-2023学年高三上学期9月联考数学试题
名校
解题方法
5 . 对于正实数
有基本不等式:
,其中
,为
的算术平均数,
,为
的几何平均数.现定义
的对数平均数:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9b454c722316d2e530e935987adcb81.png)
(1)设
,求证:
:
(2)①证明不等式:
:
②若不等式
对于任意的正实数
恒成立,求正实数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd1f53d48a9ad9f88f4b3c14f2637d3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12b0bcbf744c3da99e6488f8e66cb8c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee128ea692363f9a7b0cf0958e5f74e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b9514b5e245327b05261ac9a946063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9b454c722316d2e530e935987adcb81.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/855eaf612ac4e4505948ee0a1c3c080e.png)
(2)①证明不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8188a2ffd328c07a359ea9be8102a70.png)
②若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b0a551c4d6741cae6d513122166db90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aff93e03b22c6053550486ea4e911c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2022-05-11更新
|
493次组卷
|
6卷引用:湖北省十一校2022届高三下学期第二次联考数学试题
名校
解题方法
6 . 已知数列
中,
,其前
项的和为
,且满足
(
).
(1)求证:数列
是等差数列;
(2)证明:当
时,
.
![](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/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3b39498579d2e0678bd204d9e4afc6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad83668ff336589f82a2cd04db9f9947.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c35fb3cd13fb42176132a19326959c82.png)
您最近一年使用:0次
2020-10-03更新
|
826次组卷
|
13卷引用:2015届湖北省襄阳市五中高三5月模拟考试一文科数学试卷
2015届湖北省襄阳市五中高三5月模拟考试一文科数学试卷2015届吉林省长春市普通高中高三质量监测三理科数学试卷2016届陕西省西安市一中高三下学期第一次模拟文科数学试卷2018年高考数学(文科)二轮复习 精练:大题-每日一题规范练-第二周河南省六市2018届高三第一次联考(一模)数学(理)试题【全国百强校】宁夏回族自治区银川一中2018届高三第三次模拟考试数学(理)试题【全国百强校】四川省南充高级中学2018届高三考前模拟考试数学(理科)试题(已下线)专题32 数列大题解题模板-2021年高考一轮数学(文)单元复习一遍过(已下线)专题32 数列大题解题模板-2021年高考一轮数学单元复习一遍过(新高考地区专用)湖南师范大学附属中学2022-2023学年高三上学期月考(六)数学试题2015-2016学年吉林省扶余市一中高二上学期期末考试理科数学试卷2016-2017学年辽宁庄河高中高二10月考文数试卷2023版 苏教版(2019) 选修第一册 名师精选卷 第十单元 等差数列 B卷
名校
7 . 已知函数
,其中a为非零常数.
讨论
的极值点个数,并说明理由;
若
,
证明:
在区间
内有且仅有1个零点;
设
为
的极值点,
为
的零点且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/547a529375ea314a0e4f552a1f124864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e63138f920c05c2c0e4d1567c77e6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/372470aee75717ec33c53c3434eb126d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2dfaa0e63b9c720093ab80e2ed24c9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c18eca8193d91e13a240dec14be339cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5cbf1211335bcbc0ebb05414669eda0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/040135d64192de075ba0cc9f11ddbc9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca8325e253d8c7d9f93de39db5c4b20a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d095d38de6613fa452d0a46b6f00b7f.png)
您最近一年使用:0次
2020-01-30更新
|
1030次组卷
|
7卷引用:2020届湖北省黄冈市高三上学期期末数学(理)试题
2020届湖北省黄冈市高三上学期期末数学(理)试题2020届湖北省第五届高考测评活动高三元月调考理科数学试题2020届广东省广州市执信中学高三2月月考数学(理)试题(已下线)必刷卷10-2020年高考数学必刷试卷(新高考)【学科网名师堂】-《2020年新高考政策解读与配套资源》2020届河南省平顶山市第一中学高三下学期开学检测(线上)文数试题安徽师范大学附属中学2019-2020学年高三下学期2月第一次月考理科数学试题(已下线)卷10-2020年高考数学冲刺逆袭必备卷(山东、海南专用)【学科网名师堂】
名校
8 . 已知定义域为
的函数
(
,
)
(1)设
,求
的单调区间;
(2)设
为
导数,
(i)证明:当
,
时,
;
(ii)设关于
的方程
的根为
,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bc1fd5092caf60c396dcefda50d11ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76311d4ad39af3ecde20339154e02f6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357faffaa82c32abea936f0df78d1c6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61b4ceef651d43872a078d48092417d0.png)
(i)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655b06387179d53c1e474fcfcb408b1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d173b689f88ee05c600981ede6f1483.png)
(ii)设关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a53be12d07dd29b2d1027be85955f38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a41a0a2aac6586d91079bcbcd42041e.png)
您最近一年使用:0次
2018-12-07更新
|
481次组卷
|
2卷引用:【市级联考】湖北省荆州市2019届高三上学期质量检查(一)数学(理工农医类)试题
名校
9 . (1)证明:当
时,
;
(2)若不等式
对任意的正实数
恒成立,求正实数
的取值范围;
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff7e5b12719915c134ab756cb09f75c1.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a264a7259b8956b59ef9ef37c9af8855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a0805acb0016f9851d5d1a49e2b553.png)
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2017-05-22更新
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3卷引用:湖北省襄阳第四中学2017届高三下学期第一次模拟考试数学(文)试题
10 . 如图,AB是圆O的直径,点C是圆O上异于A,B的点,直线PC⊥平面ABC,E,F分别是PA,PC的中点.
(1)记平面BEF与平面ABC的交线为l,试判断直线l与平面PAC的位置关系,并加以证明;
(2)设(1)中的直线l与圆O的另一个交点为D,且点Q满足
.记直线PQ与平面ABC所成的角为θ,异面直线PQ与EF所成的角为α,二面角E﹣l﹣C的大小为β.求证:sinθ=sinαsinβ.
(1)记平面BEF与平面ABC的交线为l,试判断直线l与平面PAC的位置关系,并加以证明;
(2)设(1)中的直线l与圆O的另一个交点为D,且点Q满足
![](https://img.xkw.com/dksih/QBM/2014/5/22/1571735197384704/1571735202594816/STEM/fe360ef4630f4137844de7807a4b52b9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/10/29f8132e-d52b-4bb3-be15-39727acee098.png?resizew=195)
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2016-12-03更新
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4卷引用:2013年普通高等学校招生全国统一考试理科数学(湖北卷)