名校
1 . 已知
.
(1)求函数f(x)的表达式;
(2)判断函数f(x)的单调性;
(3)若
对
恒成立,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d12117652964e9c09543bec699db640.png)
(1)求函数f(x)的表达式;
(2)判断函数f(x)的单调性;
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ecd09303d8a17c6cd976199ae225685.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0071abcda7bd30cf7d01954d2556ac2d.png)
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2022-11-25更新
|
986次组卷
|
2卷引用:湖南省邵阳市第二中学2022-2023学年高一上学期期中数学试题
名校
解题方法
2 . 如果函数
的定义域为
,对于定义域内的任意
存在实数
使得
成立,则称此函数具有“
性质”.
(1)判断函数
是否具有“
性质”,若具有“
性质”,写出所有
的值;若不具有“
性质”,请说明理由.
(2)设函数
具有“
性质”,且当
时,
,求当
时函数
的解析式;若
与![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cca39b30b0b8e769293e13546b91f35.png)
交点个数为1001个,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fa3b92df8c75839b421bd3f9c974f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e91a18862bb48be69b5b72d2125d358a.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e91a18862bb48be69b5b72d2125d358a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e91a18862bb48be69b5b72d2125d358a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e91a18862bb48be69b5b72d2125d358a.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc6e69ad1a27916fb5c3d5901ded134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c86c2570913b742194ae5cbb698d37d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b06ba630c1ea702753cb6bbc8099aafd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef00b96007d1cc4e155fde29767203b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93e03ad0c315806342d6cd732a0b91a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc6e69ad1a27916fb5c3d5901ded134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cca39b30b0b8e769293e13546b91f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f79b8690c922e042e422cda331fbdfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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