1 . 已知函数
,其中
表示不超过
的最大整数.若
时,
的值域为
,记
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36304502dd9ae85a33ed38d59c655ea5.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/11dcd21c9fecf26f11f0fe6426c4762a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da2a9c3d26760744360683ba271b251.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
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2 . 定义区间![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
的“长度”等于
.若定义域非空的函数
的定义域和值域的长度相等.则
=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f638f57e9566b938633785bdd79c864c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13502d46b8563c54c09b29b20b3006a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfa1e00ee084e015955c9a1a8c5b4108.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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3 . 函数
的值域是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83f5bc918cdc2432dfd6cf467eb92053.png)
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4 . 函数
的值域为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dda31bd8473e12b23d101268a12e43e.png)
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5 . 若a>b>,a+b+c=0,且
为
的两实根.则
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff60eab72de85437e12806474281612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13fa32c1e926f40a0722d106563777ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9620d719dffbf738b35beed562c6e37.png)
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6 . 函数
的值域为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04e2c383f992582988694f093134d36a.png)
您最近一年使用:0次
7 . 函数
的值域是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/510f13e0ce5797369454a0e33d55a110.png)
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8 . 已知
,至少有一个正数b,使得
的定义域和值域相同则满足条件的实数a的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/149ac5ebffd860a1c03f37fbb11e81a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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9 . 函数
的定义域为
,若(1)
在
内是单调函数,(2)存在区间
,使得
在区间
上的值域是
,则称
为闭函数.若
为闭函数,则
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)
您最近一年使用:0次
2018-12-20更新
|
191次组卷
|
3卷引用:数学奥林匹克高中训练题_209
10 . 函数
的值域为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d2b82d38d5c5e5a767ab5fb61311dc3.png)
您最近一年使用:0次