名校
1 .
是定义在
上且满足如下条件的函数
组成的集合:
①对任意的
,都有
;
②存在常数
,使得对任意的
,都有
.
(1)设
,问
是否属于
?说明你的判断理由;
(2)若
,如果存在
,使得
,证明这样的
是唯一的;
(3)设
为正实数,是否存在函数
,使
?作出你的判断,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544f91d4fb22c571db9f8481b72a0419.png)
①对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0eac2b31a19918895e5af2d316490e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd0acb1db1ae6a26b54aef0d00f59f50.png)
②存在常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/747493d50f089f2512dcd9d0ac19261e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4169c5f606352788872a03fe5476fea2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61bb102e2f61ec8e9600935588dc9015.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcd781fd221b76b403e81dbef9de6295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/544f91d4fb22c571db9f8481b72a0419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea432d07a65a06a35484280b0951884f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/155c7f573e898da225390202da1767e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995204ecce49bf8a7c11cb5e78e6f1c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ceee0ff5c929d67de3c294e027c9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d6463e2c80a736a16fa48c89befe79c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea432d07a65a06a35484280b0951884f.png)
您最近一年使用:0次
2 . 给正有理数
、
(
,
,
,且
和
不同时成立),按以下规则
排列:① 若
,则
排在
前面;② 若
,且
,则
排在
的前面,按此规则排列得到数列
.
(例如:
).
(1)依次写出数列
的前10项;
(2)对数列
中小于1的各项,按以下规则
排列:①各项不做化简运算;②分母小的项排在前面;③分母相同的两项,分子小的项排在前面,得到数列
,求数列
的前10项的和
,前2019项的和
;
(3)对数列
中所有整数项,由小到大取前2019个互不相等的整数项构成集合
,
的子集
满足:对任意的
,有
,求集合
中元素个数的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf6b7ad3507b77771ea37b86dc6007c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ce017942d2202b78bf27e06c302b4e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b71af6590f0f369c164a054a8b63bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/738d701bf35c715a18b1e917d188a115.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5d7e6fcf7d4cec0c501e8a722e2da9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d10a4bd011e841f602958af6b3867db1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edd14c22f443140dbf6ff615c48c951e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7601433bc1a101827dc2d7f990fbd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf6b7ad3507b77771ea37b86dc6007c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ce017942d2202b78bf27e06c302b4e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c5c16d119c5debcfe6111f7122c445.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/675200825a65baf1b8dd49f566ecc481.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf6b7ad3507b77771ea37b86dc6007c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ce017942d2202b78bf27e06c302b4e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(例如:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23cfdf8490365bd5f046c9db6be7d554.png)
(1)依次写出数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(2)对数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3cf6f2bbe20a404fea41a4d2b1c4c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/453e398c6f4b0f5247906161e084ed2d.png)
(3)对数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c077edc783173d305f782378c885866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75c693640f81c5ef544b9beadf44bc25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6476f3aaf9334a2cc33ab40cb9a9dbf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
您最近一年使用:0次
3 . 设
我们可以证明对数的运算性质如下:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c042897ef7240e0f6039c79b4afe8176.png)
.我们将
式称为证明的“关键步骤”.则证明
(其中
)的“关键步骤”为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a08b88c327b7525f54a0c07c4cdb5f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c042897ef7240e0f6039c79b4afe8176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a5b710748a6c2604da45ba1080aaaee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c512c047783c07da1d4f4455a4033ef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c20bf29391da7eccd37b59c1898c158a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d53ee0d97877274c321928c897135c6.png)
您最近一年使用:0次
2019-12-31更新
|
302次组卷
|
3卷引用:上海市静安区2019-2020学年高三上学期期末数学试题
上海市静安区2019-2020学年高三上学期期末数学试题2020届上海市静安区高三一模(期末)数学试题(已下线)4.2 对数(重点练)-2020-2021学年高一数学十分钟同步课堂专练(苏教版2019必修第一册)
名校
4 . 已知
,由
有无穷多个根:0,
,
,
,…,可得:
,把这个式子的右边展开,发现
的系数为
,即
,请由
出发,类比上述思路与方法,可写出类似的一个结论_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4febb30ed7022bb9df6ca276e0c7c6f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1289059730a4c5a1d007f104078bdf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c002e82946ffe97e765194c6748594cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5bec9276cab36aedebc61bfbd547233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bc3f53c5847faa29c2bcc68f6782825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10eb613dec15ad906f6ccb2c5cc9fa43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90e939e58a78cdc8195d73c3c28b5349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7af043dd1f1ade644f36ed01b6f7ad93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d1320ca7e2c2e137b6250ffacdacef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e685003765ab771dd38d929a4492eb15.png)
您最近一年使用:0次
2019-12-16更新
|
197次组卷
|
2卷引用:上海市浦东新区建平中学2018-2019学年高三下学期3月月考数学试题
名校
5 . 如图,将正整数按下表规律排列,
(表示第i行第j列的元素),若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a799145a2b7f986bf1707bead41e9c25.png)
_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c08bf3a95fd3ddac6dbf0f7d52206cb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c510c0d8490fb84b3eb03c266631baa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a799145a2b7f986bf1707bead41e9c25.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/12b87297-dfa7-4c05-bf49-0741dec835e4.png?resizew=212)
您最近一年使用:0次
6 . 设S、T是R的两个非空子集,如果函数
满足:①
;②对任意
,
,当
时,恒有
,那么称函数
为集合S到集合T的“保序同构函数”.
(1)试写出集合
到集合R的一个“保序同构函数”;
(2)求证:不存在从集合Z到集合Q的“保序同构函数”;
(3)已知
是集合
到集合
的“保序同构函数”,求s和t的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38df84a0dff08e036311444240e4a469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f50f015b446e146c4178da1ec7b5c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e2f24b4fa5308650a244d954f78f09b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(1)试写出集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53009a380f65e03859194c1a2a77fd52.png)
(2)求证:不存在从集合Z到集合Q的“保序同构函数”;
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00a6c9fb833222c90628ea81e64ddbeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7166e4ce63ab7086e4c2e9f740b5c95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bb83ad27846200a8ac81ff4cf7fd510.png)
您最近一年使用:0次
2019-12-12更新
|
364次组卷
|
2卷引用:2019年上海市高考模拟卷(三)数学试题
名校
7 . 设
表示一个三位数,记
,如
,则满足
的三位数个数是 ________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19288aed41ac0244ab8a5b0d82db473f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6c06f50a03ae4f421f174c75abd89c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b80e617a65fbc6da4b73213143964351.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8321dab9d32a7adeb315561309d1d8cc.png)
您最近一年使用:0次
2018·上海宝山·二模
8 . 已知函数
,
的在数集
上都有定义,对于任意的
,当
时,
或
成立,则称
是数集
上
的限制函数.
(1)求
在
上的限制函数
的解析式;
(2)证明:如果
在区间
上恒为正值,则
在
上是增函数;[注:如果
在区间
上恒为负值,则
在区间
上是减函数,此结论无需证明,可以直接应用]
(3)利用(2)的结论,求函数
在
上的单调区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbc1bc250c8a6523a1be394ff48d4a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f937c7606a3ab00e17e34b39144a0ad2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20339a0d8431bf4b9cc3d6bd053fe9dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c00c43b9094d46cc2fbd6b1bb3b54a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4287e3fbd7910c03606ab99d69ecc669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)证明:如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bd395bf0be5f825009a033303a69fa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bd395bf0be5f825009a033303a69fa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
(3)利用(2)的结论,求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1edd23226d76c45ed7ea43c059449ae7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beabfec6edd24b67f47ccb6e3dc22785.png)
您最近一年使用:0次
9 . 某城市自2014年至2019年每年年初统计得到的人口数量如表所示.
(1)设第
年的人口数量为
(2014年为第1年),根据表中的数据,描述该城市人口数量和2014年至2018年每年该城市人口的增长数量的变化趋势;
(2)研究统计人员用函数
拟合该城市的人口数量,其中
的单位是年.假设2014年初对应
,
的单位是万.设
的反函数为
,求
的值(精确到0.1),并解释其实际意义.
年份 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 |
人数(单位:万) | 2082 | 2135 | 2203 | 2276 | 2339 | 2385 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)研究统计人员用函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9e8ed1026a83426ccc023d44f5f1126.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f26cade8fb52ae18a5258ec4e522e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f26cade8fb52ae18a5258ec4e522e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c787b3ae93138bac7485c406d29f94b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5328ef8021fe9906807a57d1e505a17.png)
您最近一年使用:0次
名校
10 . 已知集合
,
,若
,则
,
之间的关系是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa96033eac7ba54020823d05da2b20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf72fa6f664e66f0fa1f45a3482761d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-06-13更新
|
889次组卷
|
8卷引用:上海市闵行中学2024届高三下学期4月月考暨二模模拟考试数学试卷
上海市闵行中学2024届高三下学期4月月考暨二模模拟考试数学试卷上海市金山中学2018-2019学年高二5月月考数学试题上海市2018-2019学年高二下学期阶段性检测数学试题上海市复旦大学附属中学2019-2020学年高二上学期期末数学试题沪教版(上海) 高二第二学期 新高考辅导与训练 第13章 复数 阶段训练6(已下线)考点29 复数(考点)-备战2021年新高考数学一轮复习考点微专题(已下线)专题2.4 复数【专项训练】-2020-2021学年高一数学下学期期末专项复习(沪教版2020)上海市华东师范大学第二附属中学2023-2024学年高二下学期3月月考数学试卷