点P与定点
的距离和它到定直线
的距离之比为
.
(1)求点P的轨迹方程;
(2)记点P的轨迹为曲线C,若过点P的动直线l与C的另一个交点为Q,原点O到l的距离为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37d65e051e943ab28fa57aee2fb57994.png)
(1)求点P的轨迹方程;
(2)记点P的轨迹为曲线C,若过点P的动直线l与C的另一个交点为Q,原点O到l的距离为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44e8bc37ed03f44470762748a8f942a.png)
2022·河南洛阳·二模 查看更多[4]
河南省洛阳市2021-2022学年高三第二次统一考试理科数学试题湖北省部分重点中学2021-2022学年高二下学期4月联考数学试题(已下线)专题29 弦长问题及长度和、差、商、积问题-2湖北省武汉市洪山高级中学2022-2023学年高二下学期2月月考数学试题
更新时间:2022-03-22 23:23:00
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【推荐2】在平面直角坐标系
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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