设
,
(1)在所给直角坐标系中画出
的图象;
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/29/1ca98915-0238-4116-a7dd-7a2d37e3ec24.png?resizew=294)
(2)若
,求
的值;
(3)若
有三个根,求
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/844f6833faa3a5f8aef195727b77e4da.png)
(1)在所给直角坐标系中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/29/1ca98915-0238-4116-a7dd-7a2d37e3ec24.png?resizew=294)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e1a4f3d0f4f608ea4e8481843d19429.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338316b0fe50fdea0f2f75aec4c990dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2020-02-18 18:35:27
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