已知圆
,直线
,下列叙述正确的为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c1a0d6d9bd895f00222199cf09d9073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/768c28b763533923dfa532eb5635f4c5.png)
A.直线l恒过定点![]() |
B.直线l被圆所截得的弦最长时,![]() |
C.直线l被圆所截得的弦中最短弦长为![]() |
D.直线l可能与圆C相离 |
更新时间:2022-02-08 20:27:15
|
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【推荐1】画法几何的创始人——法国数学家加斯帕尔·蒙日发现:椭圆的两条切线互相垂直,则两切线的交点位于一个与椭圆同中心的圆上,称此圆为该椭圆的蒙日圆.已知椭圆
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