1 . 若函数
的定义域为
,值域为
,则
的图象可能为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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6卷引用:广东省梅州市大埔县虎山中学2023-2024学年高一上学期期中数学试题
2 . 设
,下列选项能表示从集合
到集合
的函数关系的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1605b73a1961575fc3aeb641b5480173.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 某校为促进学生积极参加体育锻炼,计划举办一次运动会,并为运动会设计了一款纪念品.如图所示为纪念品的平面图,其中四边形
为等腰梯形,A,B在
上,且
的半径为
,圆心
到
的距离为
,
,
.定义高径比
,已知当
时,纪念品的总体设计较为协调,符合大众审美.
![](https://img.xkw.com/dksih/QBM/2022/7/11/3020354608062464/3020432973848576/STEM/e2eb810e18dd4f6b92d007fcaacb31e1.png?resizew=145)
(1)设梯形
的高为
,求
关于
的函数关系式;
(2)当梯形
的面积
取得最大值时,判断该纪念品是否符合大众审美.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8fa37d1cbf6eb0cd960e9f0a4b91c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4604d0cbb14286c6d52be94d274fe37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdd837ded498831fbc65513b04e2e67f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6af2f597ea3f4dcfb89acb19a4ea6355.png)
![](https://img.xkw.com/dksih/QBM/2022/7/11/3020354608062464/3020432973848576/STEM/e2eb810e18dd4f6b92d007fcaacb31e1.png?resizew=145)
(1)设梯形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
(2)当梯形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
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4 . 给定函数
,
,且
,用
表示
,
的较大者,记为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/1dd7fb1d-f1b8-452b-8c96-4447d7bf64e4.png?resizew=254)
(1)作出函数
的图象,并写出函数
的解析式;
(2)求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a18ca67c2770b98f36dbfd802595a95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cddaa639d1639a7f1b77ea99a312c00a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531bcdb6324cb5a759301daddf9768c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316f701027f4bd38abca039b3499b498.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/1dd7fb1d-f1b8-452b-8c96-4447d7bf64e4.png?resizew=254)
(1)作出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531bcdb6324cb5a759301daddf9768c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/531bcdb6324cb5a759301daddf9768c0.png)
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76794702944d8ac475010b9390f8f592.png)
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