已知圆A:
,直线l(与x轴不重合)过点
交圆A于C、D两点,过点B作直线
的平行线交直线
于点E.
(1)证明
为定值,并求点E的轨迹方程;
(2)设点E的轨迹方程为
,直线l与曲线
交于M、N两点,线段
的垂直平分线交x轴于点P,是否存在实常数入,使得
,若存在,求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/350e832503e7064d0611cf1a883d1405.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76d03fa28c117649b0fdfe17eed7b583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23959718c9a2cafde51cc5b1fbab4a62.png)
(2)设点E的轨迹方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15f07321e6943c1ed419ea5661239346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
22-23高三上·河北·阶段练习 查看更多[3]
河北省示范性高中2023届高三上学期第一次调研数学试题浙江省C8名校协作体2022-2023学年高三上学期第一次联考数学试题(已下线)专题08 椭圆双曲线综合大题(9题型)-【巅峰课堂】2023-2024学年高二数学上学期期中期末复习讲练测(人教A版2019选择性必修第一册)
更新时间:2022-10-01 10:41:37
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(1)求双曲线
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(2)若直线
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(0.4)
名校
解题方法
【推荐2】已知双曲线
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(2)已知点A为
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(1)求
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解答题-问答题
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较难
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解题方法
【推荐1】设点A、F分别是双曲线
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(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9374cdec65a41dc616f6f099551880d6.png)
(2)是否存在常数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dddba649d01ae453d737ff219eef99f.png)
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【推荐2】已知双曲线
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(2)记C的左顶点为A,直线
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