已知圆C过点
,且与圆
外切于点
,
是x轴上的一个动点.
求圆C的标准方程;
当圆C上存在点Q,使
,求实数m的取值范围;
当
时,过P作直线PA,PB与圆C分别交于异于点P的点A,B两点,且
求证:直线AB恒过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c79524ae8e494739dbcc5097a0f7c78a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45fb58388a2af941d6658d345829c198.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fef9380b394a4bd829c83a5a5b4c859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50188630604c9019e00e79b21f32b20a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13364e4af8eb2ed915fa0f1caef47dd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4bb89a362c1faf4d0c306eabbb59710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc304a55feec5d8312d3082f1bb91a23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/671e0271ef5d6f9784178b28d7d60265.png)
18-19高二·江苏苏州·期中 查看更多[3]
【市级联考】江苏省苏州市常熟市2018-2019学年高二(上)期中数学试卷(已下线)第02练 圆与方程-2022年【寒假分层作业】高二数学(苏教版2019选择性必修第一册)河南省洛阳市洛宁县第一高级中学2022-2023学年高二上学期11月月考数学试题
更新时间:2018-12-11 16:09:29
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相似题推荐
解答题-证明题
|
较难
(0.4)
【推荐1】已知点E是圆C:
上的动点,点
,M是线段EF的中点,P(m,0)(
)是x轴上的一个动点.
(1)求点M的轨迹方程;
(2)当点M的轨迹上存在点Q,使
,求实数m的取值范围;
(3)当
时,过P作直线PA,PB与点M的轨迹分别交于异于点P的A,B两点,且
.求证:直线AB恒过定点.(其中
,
分别为直线PA与直线PB的斜率).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f46bd6985253f993dc2d1c12b801dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4992de610879355659a21cfeae9bb05c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0baedc4d7e690ab3f7d80d30ba0a9efe.png)
(1)求点M的轨迹方程;
(2)当点M的轨迹上存在点Q,使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b3043d7cac94429fcb1b053a2909282.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e7c8137f7124196b0926c0d755473a.png)
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名校
【推荐2】已知椭圆
:
的焦距为
,点
在椭圆
上,且
的最小值是
(
为坐标原点).
(1)求椭圆
的标准方程.
(2)已知动直线
与圆
:
相切,且与椭圆
交于
,
两点.是否存在实数
,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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c388f1f7160d3397610633dfde015fa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)已知动直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b10fc929c54ecd3215633e3af43de45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7df99fe6438442a9453fc0c57fb703.png)
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解答题-问答题
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(0.4)
解题方法
【推荐1】已知圆C过点P(1,1),且与圆M:
+
=
(r>0)关于直线x+y+2=0对称.
(1)求圆C的方程;
(2)设Q为圆C上的一个动点,求
的最小值;
(3)过点P作两条相异直线分别与圆C相交于A,B,且直线PA和直线PB的倾斜角互补,O为坐标原点,试判断直线OP和AB是否平行?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad0eb7eae475549dc6adcdce0d381e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3004d505c5f6716053a6aa1a73e8df87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d3944ec0d136c4a50183942b1ff60ac.png)
(1)求圆C的方程;
(2)设Q为圆C上的一个动点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb3443e3b1a3dc107c6acbafa800a4ce.png)
(3)过点P作两条相异直线分别与圆C相交于A,B,且直线PA和直线PB的倾斜角互补,O为坐标原点,试判断直线OP和AB是否平行?请说明理由.
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【推荐2】如图,过点
的直线与圆
:
相交于两点
,过点
且与
垂直的直线与圆
的另一交点为
.
(1)记点
关于
轴的对称点为
(异于点
),求证:直线
恒过定点;
(2)求四边形
面积
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33a62c9695f5a1691c5fe8724fa764b7.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/19/1d4050d9-81a6-4de0-954f-31ba361537ba.png?resizew=176)
(1)记点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
(2)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c593ebdb2f1934a0cb56f8c44f454f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
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