1 . 已知集合
满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ba583329b831d06312a1f20edb4a81.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-01-30更新
|
302次组卷
|
3卷引用:河北省唐山市2024届高三上学期期末数学试题
解题方法
2 . 对于定义域为
的函数
,如果存在区间
,同时满足:①
在
内是单调函数;②当定义域是
时,
的值域也是
,则称
是该函数的“优美区间”.
(1)求证:
是函数
的一个“优美区间”;
(2)已知函数
(
,
)有“优美区间”
,当
变化时,求出
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5313c921defe84689aefde4773ad2b56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2384cdb8ca10c63ed1106b5efaa4d824.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc3cf54e028d7b5d79188a3f93d05f0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64da75a02173c2a5eb40f4c68d0f4f36.png)
您最近一年使用:0次
3 . 下列说法正确的是( )
A.若函数![]() ![]() ![]() ![]() ![]() |
B.函数![]() |
C.函数![]() |
D.若![]() ![]() |
您最近一年使用:0次
解题方法
4 . 函数
的图象大致为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17bd0730c8ae8ced8021ca1fd6d21c98.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-01-29更新
|
345次组卷
|
2卷引用:河北省张家口市2023-2024学年高一上学期期末考试数学试题
5 . 对于函数
,设
,若存在
,使得
,则称
和
互为“零点相邻函数”,若函数
与
互为“零点相邻函数”,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8fd1e808e015f4cb43d2e3a0529ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3bbabe3c7ac6beb6ebad04b820e1a92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dac944968625853364eb2c655fcb78ed.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/7c8a55d7a686424bd184058f90e8888f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b034f42a44cb15e6b320f24dd7cdd0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
6 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b4b037e56cbd2932d2b2e9a2f60cadb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/198c8113a0283e916c845db68b9973a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
7 . 若
,则
的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03315f5c4171d997a5833f034bd6f0fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51834f008dc25acdf102c3b6021a26ef.png)
您最近一年使用:0次
2024-01-27更新
|
341次组卷
|
3卷引用:河北省郑口中学2023-2024学年高一上学期期末考试数学试题
8 . 设函数
的零点为
,函数
的零点为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfde4239dd688f5e24ef9fcee83d89bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6dbe0c39fe385941aa9a7b24421f78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
您最近一年使用:0次
2024-01-26更新
|
226次组卷
|
2卷引用:河北省石家庄市2023-2024学年高一上学期期末教学质量检测数学试题
解题方法
9 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7bca21d98a7b23df1a6db6c33b0bb73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0b92844e60b4e77ba8d301cd31a4ac6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
10 . 已知函数
的定义域为R,则以下选项正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
2024-01-24更新
|
559次组卷
|
3卷引用:河北省唐山市2024届高三上学期期末数学试题