1 . 已知函数
,
为偶函数,且当
时,
,记函数
,给出下列四个结论:
①当
时,
在区间
上单调递增;
②当
时,
是偶函数;
③当
时,
有3个零点;
④当
时,对任意
,都有
.
其中所有正确结论的序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fda5ab0495110870938c761638ae6ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fed62208af6047cd1374c6db9d21e8c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a3bc841b0c96fada3e4f8ca5f1396f.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c787b3ae93138bac7485c406d29f94b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5069fb2cd95b9595065b4294e308322.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bd2215e5cdeb3f6b0b7929a4a05ba65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c787b3ae93138bac7485c406d29f94b1.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3a915c1a8a9304aeb307d130faaeb15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c787b3ae93138bac7485c406d29f94b1.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6163bf8b74410bfb93919ec5130795ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/078f88a148727f0bba99fde30d056d03.png)
其中所有正确结论的序号是
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2 . 某学校球类社团组织学生进行单淘汰制的乒乓球比赛(负者不再比赛),如果报名人数是2的正整数次幂,那么每2人编为一组进行比赛,逐轮淘汰.以2022年世界杯足球赛为例,共有16支队进入单淘汰制比赛阶段,需要四轮,
场比赛决出冠军.如果报名人数不是2的正整数次幂,则规定在第一轮比赛中安排轮空(轮空不计入场数),使得第二轮比赛人数为2的最大正整数次幂.(如20人参加单淘汰制比赛,第一轮有12人轮空,其余8人进行4场比赛,淘汰4人,使得第二轮比赛人数为16.)最终有120名同学参加校乒乓球赛,则直到决出冠军共需__________ 轮;决出冠军的比赛总场数是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/430fa6c9000aa7129274e4f29613ad63.png)
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名校
3 . 已知
是各项均为正整数的无穷递增数列,对于
,定义集合
,设
为集合
中的元素个数,若
时,规定
.
(1)若
,写出
及
的值;
(2)若数列
是等差数列,求数列
的通项公式;
(3)设集合
,求证:
且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/542b4acf7b25b750fbe7205fd179b978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/857369257ea1b23ef40ce7e3a0f058af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/233427826eb2233641fc3a9805f6d206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1202d58cd3ad66e7b23f01024566705b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cc57d8a4f67a040435d8b206d3254bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6510d0816033afa001c130342bb7cda.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e4b5779873cb3f4366dbfdb983dec81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b6f99a33b14f53fb398a195aa2ec3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac648580405ecaa29e91d45738a08af7.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(3)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b54e4701d4cb8d0133ad2044a7e0f52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1479e28bf6a8cb64ec7df77cd295f99d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30a6a3d1be93cf6d16ee6e0ce0497f46.png)
您最近一年使用:0次
2024-01-21更新
|
1358次组卷
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7卷引用:北京市朝阳区2024届高三上学期期末数学试题
北京市朝阳区2024届高三上学期期末数学试题(已下线)专题1 集合新定义题(九省联考第19题模式)讲(已下线)2024年高考数学二轮复习测试卷(北京专用)(已下线)黄金卷01(2024新题型)(已下线)微考点4-1 新高考新试卷结构压轴题新定义数列试题分类汇编广东省江门市开平市忠源纪念中学2024届高三下学期高考冲刺考试(一)数学试卷江苏省常州市华罗庚中学2024届高三下学期4月二模训练数学试卷
4 . 中国传统数学中开方运算暗含着迭代法,清代数学家夏鸾翔在其著作《少广缒凿》中用迭代法给出一个“开平方捷术”,用符号表示为:已知正实数
,取一正数
作为
的第一个近似值,定义
,则
是
的一列近似值.当
时,给出下列四个结论:①
;②
;③
,
;④
,
.其中所有正确结论的序号是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55dde645fdd5795b4194e50d6885bf17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e40ebe5a203db35552e27bf3f079f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da18ad56af5e38b1a5b73f44ba198fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55dde645fdd5795b4194e50d6885bf17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede0f7cac4530e0ed4799a8192283888.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/835faec9f80596430d7352dcacde9589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c3401c74f3b70fd95a069b6abcf717.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3febfa17c874de45558534cc8bbe8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e377f675489078f2fec21a6b5cce0c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c68b253787b7980d259a243ee42ecfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad46a14425d9c75b82b4e1342c57949e.png)
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解题方法
5 . 根据经济学理论,企业生产的产量受劳动投入、资本投入和技术水平的影响,用
表示产量,
表示劳动投入,
表示资本投入,
表示技术水平,则它们的关系可以表示为
,其中
.当
不变,
与
均变为原来的
倍时,下面结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f32f6345d87e520e4ae67eb0f77cd6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee534ec4518c6e08c87c40dcf983d98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/129d17c9a49272d44a0e70346414d12d.png)
A.存在![]() ![]() ![]() |
B.存在![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
6 . 若
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-01-21更新
|
703次组卷
|
3卷引用:北京市朝阳区2024届高三上学期期末数学试题
名校
7 . 已知集合
,其中
且
,非空集合
,记
为集合B中所有元素之和,并规定当
中只有一个元素
时,
.
(1)若
,写出所有可能的集合B;
(2)若
,且
是12的倍数,求集合B的个数;
(3)若
,证明:存在非空集合
,使得
是
的倍数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcbde10b7bc82536072ca38f32b2f8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cca1d86c9f078347773f700fee49d1d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe11d564517c04437b9884da859002b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75fd9ec9c065d4337a8b1ebf2abc6a1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9bc3a22bc9cb056df1e6d5218877c8c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6e90ea92c80c31653e4ac972bf56c8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d725be6acff620b47bb7a8a7a0c6e5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75fd9ec9c065d4337a8b1ebf2abc6a1a.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af5e68b8592c14157df8db05904c8d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75fd9ec9c065d4337a8b1ebf2abc6a1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d51f9147b8265c0276c1f2c2659197.png)
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2024-01-20更新
|
324次组卷
|
2卷引用:北京市朝阳区2023-2024学年高一上学期期末质量检测数学试题
8 . 在一定通风条件下,某会议室内的二氧化碳浓度c随时间t(单位:
)的变化规律可以用函数模型
近似表达.在该通风条件下测得当
时此会议室内的二氧化碳浓度,如下表所示,用该模型推算当
时c的值约为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e008ee8b0dc593ce21d8d4c87afef1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ddb814f83a6f0c734266dc73d015a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32b6ffcdd8e21706cfe5df028f65a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d106a430e7748a4d596401820b9abd8.png)
t | 0 | 5 | 10 |
c | ![]() | ![]() | ![]() |
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
9 . 设正整数
,若由实数组成的集合
满足如下性质,则称
为
集合:对
中任意四个不同的元素
,均有
.
(1)判断集合
和
是否为
集合,说明理由;
(2)若集合
为
集合,求
中大于1的元素的可能个数;
(3)若集合
为
集合,求证:
中元素不能全为正实数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5818ede14d21f6df9ef9c2bfe09286c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ea7fcdb5423c1c8c032a3efcf245682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ead6fe08a80379f496eab2129655bd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d10449bc77d692a7270e0f20a68cdf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be0f5b704e46d64481197273b2e2557.png)
(1)判断集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85ccef0bee54b52b069616251fbea584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea9cba4a6e473e359492361f51d8556a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def70b21b73d0d0156f8ffb526413d97.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37fb28a9d01dfd12b13bce4ac4c3c5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def70b21b73d0d0156f8ffb526413d97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(3)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ead6fe08a80379f496eab2129655bd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次
2024-01-19更新
|
217次组卷
|
2卷引用:北京市朝阳区2023-2024学年高二上学期期末质量检测数学试题
名校
10 . 设
,已知由自然数组成的集合
,集合
,
,…,
是
的互不相同的非空子集,定义
数表:
,其中
,设
,令
是
,
,…,
中的最大值.
(1)若
,
,且
,求
,
,
及
;
(2)若
,集合
,
,…,
中的元素个数均相同,若
,求
的最小值;
(3)若
,
,集合
,
,…,
中的元素个数均为3,且
,求证:
的最小值为3.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c61a450b5c1c412aca3294e9eb4e9874.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1221e342a03bd2806e0993c996827ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1752474698cd5466dd180df0a00ba9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0abc7b7ef8b7a91099ca63ea1aaf7cfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e6571a9572dc91c90da43a5390f69d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b2c4a940739711008be65a1fad4146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6ac1a105450fef08656cf15a10e7fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b87cd94fef6e528d0913bb1b7b53de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b47771d50cf28b8f528afda24720eb8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c52ce6355f8b297a89f20f2e7f48041d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5beea8e2b24bdc221f6c16e46efdf665.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/862353b1d19b5e38a60c4ceeb2b01913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed4e4ea995fa993d6a55c2e523fa8ae1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b87cd94fef6e528d0913bb1b7b53de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/568bcf1a46049068d2dc34af9d0b991c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1752474698cd5466dd180df0a00ba9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bad28732b9ef03fa2a2fcabe344c27b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6caddd958ae597c7a1f8f6a9ee2a3200.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff794a4d07295ba8002c36f9c6054f86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194592cb77de8a597d5d64e1c85c3249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ece66a27e197695e0f02e1a0afa4a0d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b87cd94fef6e528d0913bb1b7b53de.png)
您最近一年使用:0次
2023-07-10更新
|
688次组卷
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