名校
解题方法
1 . 设
,用
表示不超过x的最大整数,则
称为高斯函数,也叫取整函数,例如
.令函数
,以下结论正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7e3204e4dc47a448860779349efcedf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e75f5c6e0605197e81c35265805178c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02772feb72b4ef462a2e942714ad8ea4.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() ![]() |
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2023-12-14更新
|
206次组卷
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2卷引用:云南省昆明市云南师范大学附属中学2023-2024学年高一上学期教学测评月考卷(三)数学试题
解题方法
2 . 已知函数
满足
,且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ef18ab04c2499e6d8ab6835ba1aed6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/324286813887f7274192afcc3ab5a896.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2023-11-29更新
|
336次组卷
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5卷引用:云南省楚雄州2023-2024学年高一上学期期中教育学业质量监测数学试题
名校
3 . 已知函数
满足
,当
时,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc650f8a3e361e3add7afb02a65469f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c4989f00563dc9ea4e57218ee3a5319.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7445eab2f6d1c7ce3bea26d7b729caf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd958bd75f8fb9d89214b6b8826c4780.png)
A.3 | B.6 | C.12 | D.24 |
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2023-11-29更新
|
277次组卷
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5卷引用:云南省楚雄州2023-2024学年高一上学期期中教育学业质量监测数学试题
解题方法
4 . 已知
是定义域为
的奇函数,当
时,
.
(1)求
的值;
(2)求
在
上的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1877c628e76deb6adad350a44db5ba9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579041fa505f7becf0271f4caed80f60.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
您最近一年使用:0次
解题方法
5 . 已知函数
的定义域为
,对于任意的
,都有
成立,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ab4b75fa22deba7fcbcdcb31dd45b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82bde53de43dda74249725823c0e6610.png)
A.![]() | B.若![]() ![]() |
C.![]() | D.若![]() ![]() |
您最近一年使用:0次
解题方法
6 . 已知函数
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e09148a6dd9f320df1a4f153bea116.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/991f04088f6f917b3b6907b729543502.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/547050cd8eb363c1c48b110b063b21db.png)
A.4 | B.![]() | C.14 | D.![]() |
您最近一年使用:0次
7 . 已知f(2x+1)=x2-2x,则
=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf59c5075f9e6fdf3782b6c0e528237.png)
您最近一年使用:0次
8 . 已知
,
.
(1)求
,
的值;
(2)求
,
的值;
(3)求
,
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f998540164fba9b2f6d6c8cff8e32119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5141a9cb2de912fe647017bdd6e7864e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce6155e181e21ce56ea658b70f8af17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eeb798e15ef4ea311e1d3523e7fc7a5.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40115bd0ffb708d17bf7239b062f9ae1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/402fbd430c0d060d56554a9debd53a60.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
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9 . 已知两个函数
和
的定义域和值域都是集合
,其定义如下表:
则
的值为______ .
![](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/b26bbb11e932ddb26a9088e7fc33e87b.png)
x | 1 | 2 | 3 | x | 1 | 2 | 3 | |
2 | 3 | 1 | 1 | 3 | 2 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34f565e56f7966eae71a40a93d095fc1.png)
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2023-11-10更新
|
247次组卷
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3卷引用:云南省开远市第一中学校2023-2024学年高一上学期期中考试数学试题
10 . 数学上有两个重要的函数:狄利克雷函数与高斯函数,分别定义如下:对任意的
,函数
称为狄利克雷函数;记
为不超过
的最大整数,则称
为高斯函数,下列关于狄利克雷函数与高斯函数的结论,错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa3152f795edd6e703f8888250b9dee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1550a97c21c1d71c9e95dde569668be0.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() ![]() |
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2023-11-10更新
|
256次组卷
|
3卷引用:云南省楚雄东兴中学2023-2024学年高一上学期10月月考数学试题