名校
1 . 在平面直角坐标系中,已知边长为2的正方形的中心在坐标原点,且各边均与坐标轴平行,圆
为该正方形的外接圆,过点
作圆
的两条切线,切点分别为
,
,则直线
的方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2007972af3341f27fbc32ce62dfce5e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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2023-11-20更新
|
67次组卷
|
2卷引用:海南省2023-2024学年高二上学期11月期中阶段性教学检测(一)数学试题
2 . 在平面直角坐标系
中,已知
、
.
(1)求以点
为圆心,且经过点
的圆
的标准方程;
(2)若直线
的方程为
,判断直线
与(1)中圆
的位置关系,并说明理由.若直线与圆相交,求直线被圆所截得的弦长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241ce9bd28046ce9b90f43b391132884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca0b4afd16b79370532de44989d6c43d.png)
(1)求以点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/089243ad31b799d65b9e86ec2a116188.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2020-03-16更新
|
456次组卷
|
3卷引用:海南省海口市秀英区海南枫叶国际学校2023-2024学年高二上学期期中数学试题
名校
解题方法
3 . 已知点
,
,则以线段
为直径的圆的标准方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c59f0e35b7ae5206e45878934482b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce238fd917e8ef83dbb809ee0d026012.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2020-03-16更新
|
749次组卷
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4卷引用:海南省2019-2020学年高二上学期期末数学试题
名校
4 . 已知圆C的圆心在x轴上,且经过两点
,
.
(1)求圆C的方程;
(2)若点P在圆C上,求点P到直线
的距离的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f12cb70ca55eba4ff012771dbfa9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/466e8c438084aef563c6aaeff3bca583.png)
(1)求圆C的方程;
(2)若点P在圆C上,求点P到直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d07d2a28d9af2b1ba57bcc47428e865.png)
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2019-09-20更新
|
711次组卷
|
3卷引用:海南省海南枫叶国际学校2018-2019学年高一下学期期末数学试题
名校
解题方法
5 . 已知圆
过点
.
(1)点
,直线
经过点A且平行于直线
,求直线
的方程;
(2)若圆心
的纵坐标为2,求圆
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74ca3715a4fa36cb21b4bbba6d14c5e2.png)
(1)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a3f9d5a2752ca0a9cf9f5b8ad62d9fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若圆心
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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