已知椭圆
的焦点为
,短轴端点为
,若直线PF与圆
相切,则圆
的半径为___________
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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20-21高三上·江苏南京·开学考试 查看更多[3]
江苏省南京市秦淮中学2020-2021学年高三上学期期初调研数学试题(已下线)【新教材精创】2.5.2+椭圆的几何性质(1)-B提高练-人教B版高中数学选择性必修第一册(已下线)第三章 圆锥曲线的方程-2020-2021学年高二数学同步课堂帮帮帮(人教A版2019选择性必修第一册)
更新时间:2020-09-15 20:09:49
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