高斯函数
,也称为取整函数,即
表示不超过
的最大整数.例如:
,
.则下列结论:①
;②
;③若
,则
的取值范围是
;④当
时,
的值为
或
.其中正确的结论有________ .(写出所有正确结论的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be209b4634a4169d727f9fac198acce3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be209b4634a4169d727f9fac198acce3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71ad59aa8a3731ca189c777ee7e6d1f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99f289af492bae1573e8cf1382c27574.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4f9e0f17bc9c2d04ec7f5039aa00673.png)
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21-22高一·全国·单元测试 查看更多[3]
(已下线)第五章 函数概念与性质(选拔卷)-【单元测试】2021-2022学年高一数学尖子生选拔卷(苏教版2019必修第一册)(已下线)专题10 高斯广东省广元市石龙中学2022-2023学年高一上学期第一次月考数学试题
更新时间:2021-12-17 14:54:13
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【知识点】 函数新定义
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适中
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名校
解题方法
【推荐1】对于函数
,若在定义域内存在实数
,使得
成立,其中
为大于0的常数,则称点
为函数
的
级“平移点”.已知函数
在
上存在1级“平移点”,则实数
的最小值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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适中
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解题方法
【推荐2】函数
的定义域为
,若存在闭区间
,使得函数
满足:(1)
在
上是单调函数;(2)
在
上的值域为
,则称区间
为
的“倍值区间”.下列函数中存在“倍值区间”的有________ .(填上所有正确的序号)
①
;
②
;
③
;
④
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/09f86f37ec8e15846bd731ab4fcdbacd.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/119b20f27ee885c82edf447d24cc0cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/984b23c7b47f8f6251e3a62eee75d724.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffbd8d1ec16c0501852704e566886006.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bae01f27d97b4cf4f7cd079061e2fca2.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/906df2e8f2f75d4eee25af48583893c7.png)
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