名校
1 . 已知集合
,集合
满足:①每个集合都恰有4个元素;②
.集合
中元素的最大值与最小值之和称为集合
的特征数,记为
,则
的最大值与最小值的差为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b8ba1e4fc97b6aae170ba402f00a06d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6fa157b4f65f3a9aa1f7f82de02e99e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d343d79a12548d8e4f5b1dd6dd9bf2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed5791766a68be89ceda7f1505e4fd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e819b87f90651d89fcd258c276294e43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/977596d92064cd96041927d539b09731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eced34833fc5ee8ad2c6817ced270988.png)
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解题方法
2 . 记表
示
在区间
上的最大值,则
取得最小值时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2838fbaec7d05f460c677eea011bac5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316be14489ddd109633e87fef03a5b01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
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2024-06-01更新
|
807次组卷
|
5卷引用:山东省淄博实验中学2024届高三下学期第三次模拟考试数学试题
(已下线)山东省淄博实验中学2024届高三下学期第三次模拟考试数学试题吉林省长春市东北师范大学附属中学2024届高三下学期第五次模拟考试数学试题(已下线)模型6 分段函数与复合问题模型(已下线)模型7 绝对值函数模型甘肃省兰州市西北师大附中2024届高三第五次诊断考试(三模)数学试题
名校
3 . 已知函数
,下列四个命题正确的是______ .(只填序号)
①函数
的单调递增区间是
;
②若
,其中
,
,
,则
;
③若
的值域为
,则
;
④若
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dde2a965644fb3271f5d1499a6d0f1a8.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e9cb0c55afd6604ca0a05b5e0ec6d26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bbb1af40cb43a243938534580b84559.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd45196ee60ef6f01c9c8f262777115c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f83fb225dae1f42c3eb8da461fe61b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca27cc54ca0332245f5167488daa3408.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d1422d2776494cfd5e8ca695bc0e05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66a09145206ea1060dbba927a9d12569.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8974344dff2bc357c7e63b84dbd05517.png)
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解题方法
4 . 函数
,若关于x的方程
恰好有4个不同的实数根,则实数t的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21dae08066247229136919391aa9704f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd910e8af089632e20f4fa350a864157.png)
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5 . 设
,函数
,
①若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ ;
②若函数
有且仅有两个零点,则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3a34d6f60032718820c3da2b07786b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c33e2014cceb8a6c677abad0ee5574d.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99d002d8423808d081345bdac6c25f07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
②若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64e2f18416dc95cf10b11e69d7cc6783.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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6 . 对任意的实数x,记函数
(
表示m,n中的较小者).若方程
恰有5个不同的实根,则实数t的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/539c7ad402325e12caaaec976b378355.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba0898d7174604fa223558cb25b4c78b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83b27c57488f196beb569272db63fd22.png)
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解题方法
7 . 设函数
,
,
,若
,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ef8b24e48758bbed0d8b8942f020049.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7ab586aefae2e8c69d0b165f7a1a8ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24aa16b780156e18f12baa2b8ee0f9a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff20e95162d66c00f30b4b35d0d4f20d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024-04-03更新
|
137次组卷
|
2卷引用:湖南省衡阳市衡阳县第一中学2023-2024学年高一下学期4月期中考试数学试题
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8 . 定义在R上的两个函数
和
,已知
,
.若
图象关于点
对称,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c69303bd9eccb3ccb55c9e4cd03a8a3.png)
___ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c016b51f8fa2dbdf950260257a7fe61e.png)
___________ .
![](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/123d32660dd4213ea3cef00bdb1b5945.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81397709fecd0b71b06d5c440e870729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c69303bd9eccb3ccb55c9e4cd03a8a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c016b51f8fa2dbdf950260257a7fe61e.png)
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2023-02-07更新
|
595次组卷
|
4卷引用:广东实验中学2023-2024学年高一下学期第二次段考数学试题
名校
9 . 已知函数
,对于任意的
,都存在
,使得
成立,则实数m的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a4639effe7da795003cedebfd2ec50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a49684ba67f71171321586f1a77ad4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9bc8f11fd77a832e2f16e0387523c4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/378fc033d7265ba88fc76214733e2fac.png)
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2022-06-08更新
|
1798次组卷
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7卷引用:浙江省余姚中学2023-2024学年高二下学期期中考试数学试题
名校
10 . 已知函数
,
,若对任意的
,总存在
使得
成立,则实数a的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91689c68d350f710be208140b6757fc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2340216ca524c5173c4b5d7c260e7d17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/785120c8191c971e235e7e39566d0076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fc4b242b118b3ba3a246d337cdc834.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/626f73fe4e46045a195a8c5e09ae6e9a.png)
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2020-03-20更新
|
1102次组卷
|
7卷引用:河北省保定市第一中学第八届1+3贯通班2023-2024学年高一下学期期中考试数学试卷
河北省保定市第一中学第八届1+3贯通班2023-2024学年高一下学期期中考试数学试卷河南省漯河市源汇区漯河市高级中学2023-2024学年高一下学期5月月考数学试题2020届江苏省南京市第二十九中高三下学期阶段测试数学试题2020届江苏省南通市通州区高三下学期第一次模拟测试数学试题(已下线)第十七篇不等式恒成立01—2020年高考数学选填题专项测试(文理通用)安徽省合肥市第六中学2021-2022学年高一上学期第四次过程性评价数学试题(已下线)专题09 对数函数综合性质(10题型)