2021高一·全国·专题练习
1 . 已知函数
,
.
(1)判断函数
的奇偶性,并画出
在
上的图象;
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/fad9d6e1-bbf0-47d1-83b8-48703a884ceb.png?resizew=211)
(2)若
时,函数
有两个零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09785b09b4eabab4649ab511ae2f0cdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c9a4e8324145e2a233007e7f9c6af17.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40d34be0f8e78520f179bb4939615435.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/fad9d6e1-bbf0-47d1-83b8-48703a884ceb.png?resizew=211)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d1100f2f3aaa01318b20699667dfaa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62a85b4e7e5bd79daf22b1d4faf74078.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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20-21高一上·全国·课后作业
2 . 画出函数y=x2-4|x|+3的图象,若该图象与y=b有4个交点,求实数b的取值范围.
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