名校
1 . 设
,用
表示不超过x的最大整数,则
称为高斯函数,例如:
,
.已知函数
,若
,
,则函数
的值域为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7179c645736d68c90023f83d7f11ed01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fb370b8bd5422314299f1dd4f1ec25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c970eb2a645c4fec254bb0e40c511e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a20651acfd9270c1da9c25485ff6933.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed439778439727b75b88b630ec358817.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/139e9a9d8bfaddba735554f3cc9309e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
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6卷引用:江西省南昌市2022-2023学年高一上学期选课走班调研检测(期末)数学试题
江西省南昌市2022-2023学年高一上学期选课走班调研检测(期末)数学试题四川省绵阳南山中学2022-2023学年高二下学期期末热身考试数学(文)试题(已下线)第11讲 第四章 指数函数与对数函数 章节能力验收测评卷-【帮课堂】四川省内江市第二中学2023-2024学年高三上学期10月月考数学(文)试题(已下线)模块四 专题3 题型突破篇 小题满分挑战练(4)期末终极研习室(2023-2024学年第一学期)高一人教A版(已下线)【第三课】4.4.1对数函数的概念+4.4.2对数函数的图象和性质 上好三课,做好三套题,高中数学素养晋级之路
名校
解题方法
2 . 高斯是德国著名的数学家,近代数学奠基者之一,享有“数学王子”的称号,用其名字命名的“高斯函数”为:设
,用
表示不超过
的最大整数,则
称为高斯函数,例如:
,
.已知函数
,则函数
的值域为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7e3204e4dc47a448860779349efcedf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d46d26318d841b23b93a236816abfae4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e935bb66ce8ce69c0a4043aa5c820a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b587574990d31d47bb8f98a15902ab5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1137271509d593b394594653d59d1835.png)
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3 . 利用拉格朗日(法国数学家,1736-1813)插值公式,可以把二次函数
表示成
的形式.
(1)若
,
,
,
,
,把
的二次项系数表示成关于f的函数
,并求
的值域(此处视e为给定的常数,答案用e表示);
(2)若
,
,
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5457d763fd9698e27fbcc1ef6d53f00a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb5bac75f36bb1dc5c8190d4dbe681d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cf94d263ea1e5ddad405ccbc1eb2a2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15f6db131eb532855af41d5e84ad22cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c388166862b3ccfcc7ca749ebe5949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3d0667df710a11c9f9f073babe66e7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3d0667df710a11c9f9f073babe66e7a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b73abfe4bc26b1ded680d7abb1a2cac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ce64685821c3e55c07f151996ca8c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27763d65ec630511141303dad69545b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f0e86caa2ab1bd37b67efe864815c5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e68982e0dd0bb3d87b344d23df4c2213.png)
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4 . 德国数学家狄利克雷(1805~1859)在1837年时提出:“如果对于
的每一个值,
总有一个完全确定的值与之对应,那么
是
的函数.”这个定义较清楚地说明了函数的内涵.只要有一个法则,使得取值范围中的每一个
,有一个确定的
和它对应就行了,不管这个法则是用公式还是用图象、表格等形式表示,例如狄利克雷函数
,即:当自变量取有理数时,函数值为1;当自变量取无理数时,函数值为0.以下关于狄利克雷函数
的性质:①
;②
的值域为
;③
为奇函数;④
,其中表述正确的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8238fba9b391d01ceb071e78ee221035.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8238fba9b391d01ceb071e78ee221035.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4d4ce7d4bf9f817363a840409c6172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8238fba9b391d01ceb071e78ee221035.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8b2be1b0b6bea70d4e64894f1009359.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8238fba9b391d01ceb071e78ee221035.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da8fbbaed495014d3165ec012e63634.png)
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3卷引用:湖北省黄冈市2021-2022学年高一上学期期末数学试题
5 . 高斯(1777-1855)是德国著名数学家,物理学家,天文学家,大地测量学家,近代数学奠基者之一,并享有“数学王子”之称,高斯一生的数学成就很多,其中:设
,用
表示不超过
的最大整数,则
称为高斯函数,例如:
,
,已知函数
,
,设函数
的值域为集合
,则
中所有负整数元素个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.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/7179c645736d68c90023f83d7f11ed01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d54a0e82778f606d95a486835ac9f56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ba5e494c2c83e3ddccaeb9db064d97b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a2f5cf78b2d08710be8c08a7e6337be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f58427d5aa7deeca47c8789241913f30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b07afe732d703d5664a0427ee4306be5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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3卷引用:百师联盟2020-2021学年高三上学期一轮复习联考(四)新高考数学试题