设曲线
(
)在点
处的切线与x轴交点的横坐标为
,令
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b7c950bdbee73cde08df648b031715c.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/840d4328802ab25be159bc9d794bd833.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28652e52c0b02a343e618935ea625cbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6b8573b1e9753753db1cc3369955471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/757a7672cd4603d5a4184cb7f35dd1b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b7c950bdbee73cde08df648b031715c.png)
更新时间:2022-09-02 17:03:18
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