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1 . 已知点
,
,点A满足
,点A的轨迹为曲线C.
(1)求曲线C的方程;
(2)若直线
与双曲线:
交于M,N两点,且
(O为坐标原点),求点A到直线l距离的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2e56502edba9511c1ce84ecbf6d2e99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8d89e9d012179b974e2c6bb481fa07b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17b8dfe216ef4fed64026f3bf694cc23.png)
(1)求曲线C的方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14f8ae565db8a7d4b95fdd85e28afa2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4489ea382b7a51cd5fc8c5ae585a3ec4.png)
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2022-04-08更新
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5卷引用:四川省泸县第四中学2022-2023学年高三上学期第三学月考试数学(理科)试题