名校
1 . 对于函数
.现有下列结论:①任取
,
,都有
;②函数
有3个零点;③函数
在
上单调递增;④若关于
的方程
有且只有两个不同的实根
,
,则
.其中正确结论的序号为______ .(写出所有正确命题的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b488ea4070e2c7f27a5a3fcb7c7c8138.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c50d84d051a6e770d1eeefcdcd58b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a8c69aaecfbe4d8bd7cf01a3b79c50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2419b1e277ee683ac59e59289109bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd2993f6583edb4693a760f3f276a66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b647bef81d6e219c508eca1517d9342.png)
![](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/ecc2660c57e0cb6f907f49ae35677113.png)
您最近一年使用:0次
2020-06-16更新
|
1461次组卷
|
6卷引用:黑龙江省哈尔滨三中2017-2018学年高三上学期期中考试文科数学试题
名校
解题方法
2 . 已知函数
,函数
的最小值记为
,给出下面四个结论:
①
的最小值为0;
②
的最大值为3;
③若
在
上单调递减,则
的取值范围为
;
④若存在
,对于任意的
,
,则
的可能值共有4 个;
则全部正确命题的序号为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efee94d8d161b6471d4c6e89a153af7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a239d924a26dbc7f33052c63a20a327a.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a239d924a26dbc7f33052c63a20a327a.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a239d924a26dbc7f33052c63a20a327a.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70c82644f77c5455ceb7f94950e94273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/573490ed07601c52a92d4a374db57d95.png)
④若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51159984b2cb00f30b3986315019623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05ccecaf28ac8d62d16577082832dab7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
则全部正确命题的序号为
您最近一年使用:0次
2023-03-07更新
|
1270次组卷
|
5卷引用:北京中央民族大学附属中学2023届高三零模数学试题
北京中央民族大学附属中学2023届高三零模数学试题(已下线)北京市中央民族大学附属中学2023届高三零模数学试题山东师范大学附属中学幸福柳分校2023-2024学年高一上学期期中考试数学试题(已下线)第三章 函数的概念与性质-【优化数学】单元测试能力卷(人教A版2019)(已下线)专题6 绝对值函数中参数问题(每日一题)
名校
解题方法
3 . 已知函数
的零点为
,函数
的零点为
,给出以下三个结论:①
;②
;③
.其中所有正确结论的序号为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20cae3e3f274fbeac3b84ea713cc23ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b261987081c1900b362328deba70d3eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eefd18b42f964e11a7da4c2fcf24b1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31fcfaa54d4b89ebd762454c8148488e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78557cb1fb21f49331d6042f78b2fc37.png)
您最近一年使用:0次
2023-06-21更新
|
559次组卷
|
2卷引用:山西省阳泉市第一中学校2023届高三适应性考试数学试题
名校
4 . 给出以下四个命题:
(1)命题
,使得
,则
,都有
;
(2)已知函数f(x)=|log2x|,若a≠b,且f(a)=f(b),则ab=1;
(3)若平面α内存在不共线的三点到平面β的距离相等,则平面α平行于平面β;
(4)已知定义在
上的函数
满足函数
为奇函数,则函数
的图象关于点
对称.
其中真命题的序号为______________ .(写出所有真命题的序号)
(1)命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fbaf82fe2b22d44492a001a7a02466c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22551fe4d3f29b606574a48d4233fe7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19cd44731d509352f907c9773a42cab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ea8c817d58f773e1ab3b1f71165fd1e.png)
(2)已知函数f(x)=|log2x|,若a≠b,且f(a)=f(b),则ab=1;
(3)若平面α内存在不共线的三点到平面β的距离相等,则平面α平行于平面β;
(4)已知定义在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35ec1cb6fbf02f47e28ab85910ecbc8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8874d62dca6d0103ea753da86ac3bc65.png)
其中真命题的序号为
您最近一年使用:0次
2017-12-07更新
|
2414次组卷
|
9卷引用:宁夏回族自治区固原市第一中学2017届高三上学期第5次月考数学(理)试题
宁夏回族自治区固原市第一中学2017届高三上学期第5次月考数学(理)试题【全国校级联考】安徽省肥东县高级中学2019届上学期高三8月调研考试数学(理)试题【全国百强校】山东省济南外国语学校2019届高三上学期第一次月考数学(理)试题(已下线)《2018-2019学年同步单元双基双测AB卷》【文科数学B】第一章第一练集合与简易逻辑(已下线)《2018-2019学年同步单元双基双测AB卷》【文科数学A】第二章第一练基本初等函数与函数性质的应用(已下线)《2018-2019学年同步单元双基双测AB卷》【理科数学A】第二章第一练基本初等函数与函数性质的应用(已下线)《2018-2019学年同步单元双基双测AB卷》【理科数学B】第一章第一练集合与简易逻辑内蒙古乌兰察布市集宁区集宁一中(西校区)2019-2020学年高二上学期12月月考数学(理)试题(已下线)专题01 集合与常用逻辑用语-【备战高考】2021年高三数学高考复习刷题宝典(填空题专练)
名校
5 . 对于定义域为
的函数
,设关于
的方程
,对任意的实数
总有有限个根,记根的个数为
,给出下列命题:
①存在函数
满足:
,且
有最小值;
②设
,若
,则
;
③若
,则
为单调函数;
④设
,则
.
其中所有正确命题的序号为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20e258c0598cc43a382cce8bab8260a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b6bd51117f63f7482ee9782fb9889b.png)
①存在函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46c34c1508ab9af5b2e5986652ba68da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
②设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc67984ac4e76c6f95b3fc885948fb29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138fa4ed39079099fcc80e10b5df6712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85187c85826beeca12137805293fff77.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc75ca9fbb27f0066677deb5d8f7220d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
④设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71595f31b25fcd5879783d89ab9b9bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4990c48f7ef2a3c9141679809307bbad.png)
其中所有正确命题的序号为
您最近一年使用:0次
2021-05-08更新
|
544次组卷
|
4卷引用:北京市东城区2021届高三下学期二模数学试题
名校
6 . 下列说法中错误的是__________ (填序号)
①命题“
,有
”的否定是“
”,有
”;
②已知
,
,
,则
的最小值为
;
③设
,命题“若
,则
”的否命题是真命题;
④已知
,
,若命题
为真命题,则
的取值范围是
.
①命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/281b260fe94c42258b7fa8c6bc6cefa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb9c2681fd202657c6d22201b738d19c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fdcb0d7eda2baefa352f1a01e6acbdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f44d098a68a65c8c2b6c058cb17a903b.png)
②已知
![](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/5be97cd1c7111b654d87d8fbb63b6a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaf35d6c316d9a014327ed3fdfeec374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a3df1ec9f4cc08c367980b39a931785.png)
③设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcbca3478eae63853d2aab5332e2e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34715101c66fa12ce6baf0a9c53f1672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c988d709ba8cd8aed6cb83d76c0ba89c.png)
④已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39b598308dce900e042d195d6fa0ab67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3a6c2a598b6168200d5261996b8e3eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9ba30151cfe5b33816cb59c11589e91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e93d6bae5b58d23fb85b8f54998da17.png)
您最近一年使用:0次
2018-02-07更新
|
2132次组卷
|
5卷引用:2017届江西省师大附中、临川一中高三1月联考数学(理)试卷