已知椭圆
的左、右焦点分别为
,
,点M在椭圆C上,且
,(
为原点),则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeac5175101c8d3fbdefea179f41c992.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.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/74404619ad5699e6c44c947fb569600f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeac5175101c8d3fbdefea179f41c992.png)
更新时间:2023-11-07 09:53:42
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【推荐1】记锐角
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【推荐2】在△ABC中,a,b,c分别是角A,B,C的对边,
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【推荐2】已知焦点为
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