解题方法
1 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe8011df6b2950afa58c89399aba775.png)
________ ,方程
的实数根的个数为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51c50e774e91dddb43fb972d9ef2154.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe8011df6b2950afa58c89399aba775.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16054790b1ef705d4c1ba15cf671db38.png)
您最近一年使用:0次
2 . 已知函数
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d0a8287d91e44cd3262b954370f5849.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d47e0d2a2d75291d711729980b3b2b10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52885b7e647439ebf8e7d84fb768319c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d0a8287d91e44cd3262b954370f5849.png)
您最近一年使用:0次