1 . 已知函数
为奇函数,则α的值可能为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f30c36a0fbec7410e96ed9348df0db.png)
A.0 | B.![]() | C.![]() | D.![]() |
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2021-09-07更新
|
376次组卷
|
3卷引用:2020年浙江省温州市摇篮杯高一数学竞赛试题
2 . 已知实数a,b满足:对于任意的实数x,不等式
恒成立,则
的取值范围为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f67e4eb752ced56c45f326cd39a40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/761a4034330ec48e65d5a627c4184760.png)
A.[1,+![]() | B.[![]() ![]() | C.[![]() ![]() | D.[![]() ![]() |
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3 . 已知函数
,则
的值为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da641a7aa7245a4a18bead98c52d7bc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae82137924f11e531726e6fbecd0524.png)
A.![]() | B.2 | C.![]() | D.![]() |
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2021-09-07更新
|
238次组卷
|
2卷引用:2020年浙江省温州市摇篮杯高一数学竞赛试题
4 . 方程组
的解的组数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5ab0c7b6b0fb725f3cb7399445ba4fa.png)
A.5 | B.6 | C.7 | D.8 |
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5 . 设
,若
表示不超过
的最大整数,则函数
的值域是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/803c1461071be7c597cde79757e7de7e.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/b07afe732d703d5664a0427ee4306be5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-12-09更新
|
249次组卷
|
2卷引用:江苏省徐州市贾汪中学2020-2022学年高一下学期春季竞赛数学试题
6 . 设函数
满足
,且
的最小值为
,则
为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61c1686b954265ee2eae865803a42126.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2a698891d42c70b597f0da4f215f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.0 | D.2 |
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7 . 设
、
、
满足
,
.则( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4d235f517636f60bdd7b2ac171faf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c2736c05aabe3a65bd01882707f4c11.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
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8 . 函数
的值域为( )(
表示不超过实数
的最大整数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/372fd3ee38adbd74141da13a1420d1cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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9 . 设函数
,对于任何
都有
,且当
时,
.若
的图像与直线
相交或相切,则其交点或切点的个数为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a17e36b57a381a274173902e8a020d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d91f7a11cc608e7dade32bb4b6b615.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0c6f119137e1b6760d55956d99d963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/286a3afb6635ae0c6aa627e4d4318157.png)
A.1 | B.2 | C.3 |
D.不确定,与![]() |
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10 . 函数
的定义域为
,若满足(1)
在
内是单调函数;(2)存在
,使
在
上的值域为
,则称
为“闭函数”.现知
是闭函数,那么
的取值范围是( ).
![](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/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0195f699765021e2c6ea985e487971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1a5ff66832ed844c01532a5cf603a98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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