已知函数
,其中
,若过原点且斜率为
的直线与曲线
相切,则
的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40d2532e494482be24e838947854ece3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95800ce519e139befd294359d8bfe30f.png)
更新时间:2018-02-18 21:24:28
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【知识点】 已知切线(斜率)求参数
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