1 . 中国古代科学家发明了一种三级漏壶记录时间,壶形都为正四棱台,自上而下,三个漏壶的上底宽依次递减1寸(约3.3厘米),下底宽和深度也依次递减1寸.设三个漏壶的侧面与底面所成的锐二面角依次为
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f64fa38725c136504f723019a18dc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e93fa313adc4ac7608ba9449fd755212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e8d4017e1a37acb0c8e00508be472b2.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
23-24高三上·北京西城·期末
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解题方法
2 . 给定正整数
,已知项数为
且无重复项的数对序列
:
满足如下三个性质:①
,且
;②
;③
与
不同时在数对序列
中.
(1)当
,
时,写出所有满足
的数对序列
;
(2)当
时,证明:
;
(3)当
为奇数时,记
的最大值为
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad2477167a02872167b2a3760f09d6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dc25d4213ca2eadce49e6d8ba805e15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b730e2023809495f2bd7fbf48f07a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca986e62ec3a6e50e4e2cad639aa9201.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd869b784314b8278f5d144b2d3a9fb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/698c4d4e50062b4a7dd70fe1b4ab4fd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302391681aa37ac20d6f533dbae9e137.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a215612787e43d28bfebc840c3903b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a60302649eb940748da818199e55da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241d587c2e6f2f109a4e41b79f1c800f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926c16dd072c9ff8a560b003cfb47053.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4546b12ff89d1599427da82294afc09b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4546b12ff89d1599427da82294afc09b.png)
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2024-01-19更新
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2115次组卷
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7卷引用:北京市西城区2024届高三上学期期末数学试题
(已下线)北京市西城区2024届高三上学期期末数学试题北京市西城区2024届高三上学期期末数学试题(已下线)高三数学开学摸底考 (北京专用)2024年普通高等学校招生全国统一考试数学冲刺卷二(九省联考题型)江西省南昌市第二中学2024届高三“九省联考”考后适应性测试数学试题(四)江苏省连云港高级中学2023-2024学年高二下学期第一次月考数学试卷广东省深圳市外国语学校2024届高三教学情况测试(一)数学试题
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3 . 设
为给定的正奇数,定义无穷数列
:
若
是数列
中的项,则记作
.
(1)若数列
的前6项各不相同,写出
的最小值及此时数列的前6项;
(2)求证:集合
是空集;
(3)记集合
正奇数
,求集合
.(若
为任意的正奇数,求所有数列
的相同元素构成的集合
.)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0d7559d8dfa8236ca9d4b1853fbdec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77576292d833c93bdcf4da9787ee0db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f255d0395fba51ca2d44293cca42e0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0d7559d8dfa8236ca9d4b1853fbdec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/003dd0feaa12a01db4c777784889c374.png)
(1)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0d7559d8dfa8236ca9d4b1853fbdec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)求证:集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3884cadaff5a78756698d57c41f305d.png)
(3)记集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611448a63d973f73f8c0026dd38ac932.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7dbf7c1220f9db7d313570143f4a709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0d7559d8dfa8236ca9d4b1853fbdec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
您最近一年使用:0次
2023-12-21更新
|
1101次组卷
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4卷引用:北京市西城区北师大附属实验中学2024届高三上学期12月月考数学试题
北京市西城区北师大附属实验中学2024届高三上学期12月月考数学试题(已下线)专题1 集合新定义题(九省联考第19题模式)练湖南省2024届高三数学新改革提高训练二(九省联考题型)(已下线)4.3 数列-求数列通项的八种方法(八大题型)(分层练习)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)
名校
4 . n个有次序的实数
,
,
,
所组成的有序数组
称为一个n维向量,其中
称为该向量的第
个分量.特别地,对一个n维向量
,若
,
,称
为n维信号向量.设
,
,
则
和
的内积定义为
,且
.
(1)直接写出4个两两垂直的4维信号向量.
(2)证明:不存在14个两两垂直的14维信号向量.
(3)已知k个两两垂直的2024维信号向量
,
,
,
满足它们的前m个分量都是相同的,求证:
.
![](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/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/086eb439f6a1578fdba904825340772d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efee470d0232b6b37f2fb2ab15aae0ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d5cd21ff3c760e7ec3130f5bfa8c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da796531c7b6c590a22b811df1fcef53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0cf905f1d4af294ebc9c19facd64c3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d5cd21ff3c760e7ec3130f5bfa8c91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a414d372b680499f1c8ca1a7ae5f4d82.png)
则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd04a2f39ff6f36e9531bac16960d71e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19c7c807358869b70becd16ca80e1714.png)
(1)直接写出4个两两垂直的4维信号向量.
(2)证明:不存在14个两两垂直的14维信号向量.
(3)已知k个两两垂直的2024维信号向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/596afe6f8149e39c53d36a759bee6151.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf2182d0dad848ccc76944d976befbf2.png)
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5 . 设
为无穷数列,给定正整数
,如果对于任意
,都有
,则称数列
具有性质
.
(1)判断下列两个数列是否具有性质
;(结论不需要证明)
①等差数列
:5,3,1,…;②等比数列
:1,2,4,….
(2)已知数列
具有性质
,
,
,且由该数列所有项组成的集合
,求
的通项公式;
(3)若既具有性质
又具有性质
的数列
一定是等差数列,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8feaf51b5fdc0b7aad38b26f57825712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/575e42a3bdb429360418e949bd963a11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d46bf6ded2f869744c6c50785f974aa6.png)
(1)判断下列两个数列是否具有性质
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bea0dd7e474bcd04db2544427ba0488.png)
①等差数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bea0dd7e474bcd04db2544427ba0488.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/b8f3e9d115d6290eee217a29dc399cbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(3)若既具有性质
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee83304e529e6d24ea7ff894bd6d87a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d46bf6ded2f869744c6c50785f974aa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2023-07-10更新
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775次组卷
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5卷引用:北京市西城区2022-2023学年高二下学期期末考试数学试题
北京市西城区2022-2023学年高二下学期期末考试数学试题(已下线)高二数学下学期期末押题试卷01【北京专用】专题03数列(第三部分)-高二上学期名校期末好题汇编(已下线)2024年新课标全国Ⅰ卷数学真题变式题16-19(已下线)专题02 等比数列4种常考题型归类【好题汇编】-备战2023-2024学年高二数学下学期期末真题分类汇编(北京专用)
6 . 设
,函数
,给出下列四个结论:
①
在区间
上单调递减;
②当
时,
存在最大值;
③设
,则
;
④设
.若
存在最小值,则a的取值范围是
.
其中所有正确结论的序号是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e09c9b3f92accfbaf2cee6a84a1d94.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5a7642c9278c33a62f1ed6a7cc468fb.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
③设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d110e0f424eed2183ac3ce5c50391ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf7dfe611c3e562f47c2cafd4a83ad2.png)
④设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94847a103e709508bd0e1ef50d6bb742.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82358b724051b032c7ec734a226ae84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53f59a84526646f8d6f5fccb3796f654.png)
其中所有正确结论的序号是
您最近一年使用:0次
2023-06-19更新
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11115次组卷
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23卷引用:北京市西城区北师大二附中2024届高三上学期期中数学试题
北京市西城区北师大二附中2024届高三上学期期中数学试题2023年北京高考数学真题专题02函数与导数(成品)专题07平面解析几何(成品)(已下线)2023年北京高考数学真题变式题11-15北京十年真题专题02函数概念与基本初等函数(已下线)考点2 分段函数 2024届高考数学考点总动员 (讲)(已下线)第07讲 函数与方程(练习)(已下线)第一讲:数形结合思想【练】(已下线)专题2 函数的性质综合应用【练】 模块3 变量关系篇(函数)高三清北学霸150分晋级必备(已下线)技巧02 填空题的答题技巧(8大核心考点)(讲义)(已下线)专题05 函数的概念及表示(已下线)高三数学考前冲刺押题模拟卷01(2024新题型)(已下线)2.1 函数的概念及其表示(高考真题素材之十年高考)(已下线)2.4函数的图象(高考真题素材之十年高考)(已下线)【类题归纳】代数表达 数形结合(已下线)高考数学测试 请勿下载(已下线)专题3 函数填空题(文科)-1(已下线)专题03 函数填空题(理科)-1专题08平面解析几何专题12平面解析几何(第二部分)(已下线)五年北京专题08平面解析几何(已下线)三年北京专题08平面解析几何
名校
7 . 已知A为有限个实数构成的非空集合,设
,
,记集合
和
其元素个数分别为
,
.设
.例如当
时,
,
,
,所以
.
(1)若
,求
的值;
(2)设A是由3个正实数组成的集合且
,
;,证明:
为定值;
(3)若
是一个各项互不相同的无穷递增正整数列,对任意
,设
,
.已知
,
,且对任意
,
,求数列
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb7c99c8cbe637500b035e0e1902a033.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8100888a300fb9ed023b9ac2fec647ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/636c838e9c10d079e5df897fce90761b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae1c2e4e88850bcd0c407629c910c6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b6ca4579d3b21f827a20b3e7b7ad58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4be9b536fcf7bbdb422184f74db9ed1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b54c66b039aad0df01deec7da6f123a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a22f8d9188279429b395c30b2898ac1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aab4c7422d4997feb61a658136b9fd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ce2efca6ec1c9fc9586279ece42852.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75c898169e8b95025b9ff9058270e211.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d306f20a533948bf22e20b17f72c53f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed0081de4e04574dd0884c4e6077fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d06cb03804abed6015be7b8c2eaf83f.png)
(2)设A是由3个正实数组成的集合且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14a63621bb4e3528afad4fef36e0e3a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9deac583068f295611f303900aa8cb9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d0b299b9486d7426422d4656df2ae2b.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97769855336d73371930df1f187875e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/929d4439a3528ff0dbda8a4c15e50684.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7e8bd271e66569868509692efc02a21.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/e97769855336d73371930df1f187875e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/730f650aa06ea3951441a726c44e2d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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3卷引用:北京市师大附属中学2023届高三适应性练习数学试题
8 . 定义圈数列X:
;X为一个非负整数数列,且规定
的下一项为
,记
,这样
的相邻两项可以统一表示为
(
的相邻两项为
,即
;
的相邻两项为
).定义圈数列X做了一次P运算:选取一项
,将圈数列X变为圈数列
:
,即将
减2,相邻两项各加1,其余项不变.并记下标k输出了一次.记X进行过i次P运算后数列为
:
(规定
)
(1)若X:4,0,0,直接写出一组可能的
;
(2)若进行q次P运算后
,有
,此时下标k输出的总次数为
,记
直接写出一组非负实数
,使得
对任意
,都成立,并证明
;
(3)若X:
,0,0,…,0,证明:存在M,当正整数
时,
中至少有一半的项非零.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f214157de400b0b2a1e05537099f923d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87907959756f00396669363cf88eaf08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/596afe6f8149e39c53d36a759bee6151.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66b1c7fa6b6f144a64d74919d10850df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8bbd725411153f3633f4890fbfaa660.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0894405d04b1d2a5cfad77ff782676fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e749b2d939983c253168c181d1da75b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43d21eab854a007f760b8a1c10111bf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa838b409a2f7e7116597f76df30c2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/221d51ced11c126b1b3e90806fd68ae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/596afe6f8149e39c53d36a759bee6151.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f95e54a9b7c66c97dc6ee6161a25c0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd0669b68e68a3ae7514cef46c1dfaaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63bde043b466cec4c2edc08e56fc9af9.png)
(1)若X:4,0,0,直接写出一组可能的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b753f542ea6fcf63c231f3408e474421.png)
(2)若进行q次P运算后
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7de57e05208fa589f2bf2033d80765d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9123a44524ca34d63b0b70122b0d41ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f255d0395fba51ca2d44293cca42e0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a5a77c83f6b7cb83300b70b09436339.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df1684f90061da517e8825e791a5a06b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1779444296713b01857e045cdda2d08d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e6efdcc42efa52de9ab2c7a707c4ad4.png)
(3)若X:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0876215b2fd463d151523cd3c6b447.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/208575de4f7422c995dd601c54d264d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9cce113f874ea096ee027d0c7d2ad27.png)
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2022-12-31更新
|
546次组卷
|
4卷引用:北京市人大附中2022届高三上学期数学收官考试之期末模拟试题
北京市人大附中2022届高三上学期数学收官考试之期末模拟试题北京市北京大学附属中学2022届高三12月月考数学试题(已下线)2020年高考北京数学高考真题变式题16-21题北京市第二中学2023届高三下学期开学测试数学试题
9 . 给定有穷数列
、
、
、
,定义数列
的绝对差分数列
、
、
、
,其中
.若数列
是单调不减的,即
,则称数列
是
数列.
(1)直接写出下面两个数列的绝对差分数列,并判断其是否为
数列:
①
、
、
、
;
②
、
、
、
;
(2)已知各项均为整数的
数列
、
、
、
满足
,并且其差分数列是等差数列,若
,
,求
的所有可能值;
(3)已知
数列
、
、
、
是
、
、
、
、
的一个排列,若其差分数列
、
、
、
满足
,求
的所有可能值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a63f1709c28f68d64d9ea1134d68ffb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5453ec6a9e8b96357c888ea863ddcf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b7e51b9389c91feffd0efc3c56dd44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bd827a079b9c5f4816d6f025bee8cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa9048c747a4a07468a44167e78c9c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5894ed1f1641a511005398971c26496.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b7e51b9389c91feffd0efc3c56dd44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca61822f7dd849a5ec4708a87aea8d5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19354ba989f4d21ccdafc4b4a4d7eea4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25c6b1d7902e080f145a094c28856457.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c4b9c60fdb001f63be75985dce0615.png)
(1)直接写出下面两个数列的绝对差分数列,并判断其是否为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c4b9c60fdb001f63be75985dce0615.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2cf5a78fa929cd4c9fa72191f97dd23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9880952857950577055578875ab29141.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87d696d9bf311bddb74b915fb3e9506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bff990c7925edc33ee124c18f0e3ddb.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2455a48d59843042ff8150a3b8548cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17ca1e04c68f59bddc675411a0ea2fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b61dd0bd398e182e636d519102aacc2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8578ad77f9f7fb2159f6a6e53bf2ff68.png)
(2)已知各项均为整数的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c4b9c60fdb001f63be75985dce0615.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a63f1709c28f68d64d9ea1134d68ffb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5453ec6a9e8b96357c888ea863ddcf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b7e51b9389c91feffd0efc3c56dd44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a404bdf74c39673c894fd538f726801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f365ccab332ab4106a3fb8c6a07d618.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73028194476dd7ed6f5e2dd150d99254.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e48aa620084408ae9fd4470aa656d67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a404bdf74c39673c894fd538f726801.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c4b9c60fdb001f63be75985dce0615.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a63f1709c28f68d64d9ea1134d68ffb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5453ec6a9e8b96357c888ea863ddcf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b7e51b9389c91feffd0efc3c56dd44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414656636a840bbb9a031d6103239fdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9880952857950577055578875ab29141.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25b2bbf7e0d8ad8306348d9057671f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b7e51b9389c91feffd0efc3c56dd44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51f8d8c10b4f80f728744bbe722b68e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa9048c747a4a07468a44167e78c9c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5894ed1f1641a511005398971c26496.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3b7e51b9389c91feffd0efc3c56dd44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/182fb5c8bb9bc9768c8e72e5414f4e7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dba9d7201a345787d1b9cb58596664f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a425978da20cebf8c4c63953579e7b35.png)
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2卷引用:北京师范大学附属实验中学2023届高三上学期第三次大单元测试数学试题
名校
解题方法
10 . 已知函数
.
(1)若
恒成立,直接写出a的值,并证明该不等式;
(2)证明:当
时,
;
(3)当
时,不等式
恒成立,求a的取值集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80ab70ac1f081eead97f4cb82842e024.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f759fb245f7374baaf39859a642b2afa.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22165fb1166b885fec563eb95b778882.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43920f5171ed31db2520ef00e4c5fc24.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22165fb1166b885fec563eb95b778882.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61b901c735b3a93a90bf95e05d1525d6.png)
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|
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4卷引用:北京市西城外国语学校2024届高三上学期10月月考检测数学试题