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1 . 已知椭圆C:
,
,
分别为它的左右焦点,若点P是椭圆上异于长轴端点的一个动点,
,下列结论中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b747db7eaf469c6d1607e4b0d028299f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e584f799ea554fc5533925ead4672501.png)
A.![]() |
B.过椭圆C上一点![]() ![]() |
C.![]() |
D.若M是直线![]() ![]() ![]() |
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2023-01-13更新
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3卷引用:新疆乌鲁木齐市第八中学2022-2023学年高二上学期期末考试数学试题