名校
解题方法
1 . 已知定义在
上的偶函数
满足:
,且当
时,
单调递减,给出以下四个命题:
①
;
②
为函数
图象的一条对称轴;
③ 函数
在
单调递增;
④ 若方程
在
上的两根为
,
,则
.
上述命题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/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feedd7224f069d6d4796a3b6e5b23e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790daaa89fc9d093f45023becf765697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec65a2bec3d4296c613a80b3ae41d5e.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
③ 函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71913ad3245e04f709e91a68553f8a75.png)
④ 若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c0d827ef8598ba6b70b34b2bdcd1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9eb53c0560847e76d648116f8bc4de2.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/cbdd93875258193ea4d7dfbd5270f06e.png)
上述命题中所有正确命题的序号为
您最近一年使用:0次
名校
2 . 已知函数
,有下列结论:
①
,等式
恒成立;
②
,方程
有两个不等实根;
③
、
,若
,则一定有
;
④存在无数多个实数
,使得函数
在
上有三个零点.
则其中正确结论序号为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed38d89c34a21860287df306e9f3670.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b398653977a7e83326b32a716f89715a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d3dfb9993f0852e443ea196e974013d.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3550045493995a319b81b98a27bf6ffa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ffd05445e62cf6352e48d073fac779.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/673207f6b77b8192d25463d071737b7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77c96a3141bc9fee638c69b3ed1dec7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f27822887caad20f3a075ca2fb74155c.png)
④存在无数多个实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27ce93b9f0ea8d7e3a5e4a4f2fcacf45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b61bb7cb94b4d06f0090df1e365667.png)
则其中正确结论序号为
您最近一年使用:0次
2021-11-19更新
|
885次组卷
|
4卷引用:北京市中关村中学2021-2022学年高一上学期期中阶段学情调研数学试题
北京市中关村中学2021-2022学年高一上学期期中阶段学情调研数学试题(已下线)第8章 函数应用 单元综合检测(难点)(单元培优)-2021-2022学年高一数学课后培优练(苏教版2019必修第一册)浙大附中玉泉、丁兰2022-2023学年高一上学期期中数学试题广东省三校联考2023-2024学年高一上学期期中数学试题
名校
3 . 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
|
552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
20-21高一·全国·课后作业
4 . 给出以下结论:
①当
时,函数
的图象是一条直线;
②幂函数的图象都经过
,
两点;
③若幂函数
的图象关于原点对称,而
在定义域内
随
的增大而增大;
④幂函数的图象不可能在第四象限,但可能在第二象限.
则正确结论的序号为________ .
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51cc689a7ccf4acfd2d5ecba23e9768.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4250ec1d917f79063aec24a24cad892b.png)
②幂函数的图象都经过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b6a9ffffc0c461881b427c543924cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c832f2474efe89961ef41e884da7660c.png)
③若幂函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4250ec1d917f79063aec24a24cad892b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4250ec1d917f79063aec24a24cad892b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
④幂函数的图象不可能在第四象限,但可能在第二象限.
则正确结论的序号为
您最近一年使用:0次
20-21高一·上海·假期作业
5 . 已知函数
的图象与函数
的图象关于直线
对称,令
,则关于函数
有下列命题:
①
为偶函数; ②
的图象关于直线
对称;
③
在
上为减函数; ④
的最小值为0.
其中正确命题的序号为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/026fa14f66c6bca69b94c37d37e21642.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/205800d3a62425b3d1bd5e3fb9bb61b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b650820d7bed48ed67a2869ad8c65ff1.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf40534683bc7d708804ff3d0ec7deb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
其中正确命题的序号为
您最近一年使用:0次
6 . 给出下列说法:
①某校高一年级的数学教师组成一个集合;
②由-1,0,1,
,
,
,3,-3组成的集合中有8个元素;
③由a,b,c组成的集合与由c,b,a组成的集合是不相同的.
其中不正确的是______ (填序号).
①某校高一年级的数学教师组成一个集合;
②由-1,0,1,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0632d78569b1d70b4b268c8f247caaef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b42b5721739be8597a3f8a91e25061c3.png)
③由a,b,c组成的集合与由c,b,a组成的集合是不相同的.
其中不正确的是
您最近一年使用:0次
名校
7 . 已知
,
,则下列命题中所有正确命题的序号为______ .
①存在
,使得
的单调区间完全一致;
②存在
,使得
的零点完全相同;
③存在
,使得
分别为奇函数,偶函数;
④对任意
,恒有
的零点个数均为奇数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/402ce8a613e5f2fbb94a97bbe670638d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f9d0624e29b819bfcf26187ae043db.png)
①存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0e9d1ad9561d693958756ee8398218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8fd1e808e015f4cb43d2e3a0529ac6a.png)
②存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0e9d1ad9561d693958756ee8398218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e513e8e01e8c436b4c8900b31f6cd571.png)
③存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0e9d1ad9561d693958756ee8398218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348655470887ca720aa5a436867dda7e.png)
④对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0e9d1ad9561d693958756ee8398218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348655470887ca720aa5a436867dda7e.png)
您最近一年使用:0次
2019-05-04更新
|
456次组卷
|
2卷引用:北京市牛栏山第一中学2020-2021学年高二下学期期中考试数学试题
20-21高一·江苏·课后作业
8 . 判断下列表述是否正确:
(1)
; (2)
;
(3)
; (4)
;
(5)
; (6)
;
(7)
; (8)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec538184bd8d3c44daa125ff84cc742b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00e16c585bf84d772b03e64c33d5c224.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dffa77ed1678e5c275f8cb9b8c649124.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb1e46247fa97d0f98dfe75663bc72f1.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbf82d0306f6f5ce7b8aa3c8b4059e6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c596440b19b651cc3f63581c84510e6.png)
(7)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c06978f01170060df1da59a8c5d213fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f721cc481254f8592c91e9273e7620ef.png)
您最近一年使用:0次
名校
9 . 已知函数
是定义在R上的偶函数,对任意
都有
,当
,且
时,
,给出如下命题:
①
;
②直线
是函数
的图象的一条对称轴;
③函数
在
上为增函数;
④函数
在
上有四个零点.
其中所有正确命题的序号为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db40d5295942e85ec07a3728c7ad308d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05f1a3feca6218955446108ebad0a524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc4f495208cdf5c885355f4f6bd0479e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7da51ea2568e743b9033d68422fb688.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13909e2861ce1a0a64fc9e8b37463a7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67c673b22d6733412db522a0ebed4bb4.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66b29c39bd1dbaabfde9a6ec596488e7.png)
②直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/880a8218c4b9d59523d1f35460c7a2e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db40d5295942e85ec07a3728c7ad308d.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db40d5295942e85ec07a3728c7ad308d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8944a17591d1189dae246718f8ade55.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db40d5295942e85ec07a3728c7ad308d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e91bb7011ad55f5f033433f6c19c4e7.png)
其中所有正确命题的序号为
A.①② | B.②④ | C.①②③ | D.①②④ |
您最近一年使用:0次
2018-12-03更新
|
625次组卷
|
3卷引用:云南省大理下关一中教育集团2020-2021学年高一下学期期中考试数学试题
10 . 下列说法不正确的是______ (填序号).
①由1,0,5,3,2组成的集合中有5个元素;
②集合
与
表示不同的集合;
③集合
和
表示同一个集合.
①由1,0,5,3,2组成的集合中有5个元素;
②集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b26bbb11e932ddb26a9088e7fc33e87b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b42ca8760418152486ac9dc2cbc60e0d.png)
③集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21f3938afdef312e5aefd78414f3ac92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64d95943237b41092c2e3cfcb941ba68.png)
您最近一年使用:0次