已知
为直线
上一点,过
点引圆
的切线,若切线长的最小值为
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
___________ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0386a78bc5c758701b94ecd6986bd36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52b33328faae2d2d4921900e97424de5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
20-21高三下·河南商丘·阶段练习 查看更多[3]
河南省商丘市新乡市部分学校2021届高三5月联考文科数学试题九师联盟(河南省)2021届高三下学期五月联考文科数学试题(已下线)专题39 直线与圆的位置关系-学会解题之高三数学万能解题模板【2022版】
更新时间:2021-05-10 13:45:22
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【知识点】 已知切线求参数
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【推荐1】已知直线
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【推荐2】已知直线
和圆
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___________ .
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