1 . 已知定圆
:
,其圆心为
,点
为圆
所在平面内一定点,点
为圆
上一个动点,若线段
的中垂线与直线
交于点
,则动点
的轨迹可能为______ .(写出所有正确的序号)(1)椭圆;(2)双曲线;(3)抛物线;(4)圆;(5)直线;(6)一个点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e93a9366c071285c3e46c7a8839cd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/575efbff8547b3f5d668c1768f1bab45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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2019-11-08更新
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2卷引用:上海市复兴高中2017-2018学年高三下学期3月开学考数学试题