1 . 已知直角三角形ABC的顶点
,直角顶点B的坐标为
,顶点C在x轴上.
(1)求直角三角形ABC的外接圆的一般方程;
(2)设OA的中点为M,动点P满足
,G为OP的中点,其中O为坐标原点,E为三角形ABC的外接圆的圆心,求点G的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c91b17113b6ccbdc8579bc20f9aa68.png)
(1)求直角三角形ABC的外接圆的一般方程;
(2)设OA的中点为M,动点P满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a2d10936975d1fab0b86de1c987aea.png)
您最近一年使用:0次
2022-12-27更新
|
414次组卷
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5卷引用:山东省莱西市第一中学2022-2023学年高二学业水平检测(二) 数学试题
解题方法
2 . 已知圆
:
,直线
:
.
(1)求圆
的圆心及半径;
(2)求直线
被圆
截得的弦
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c10ddd7a65f48b33aac9b82126924a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32c935806559b1a913a7edb3c804999.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
3 . 已知圆C经过三点
,
,
.
(1)求圆C的标准方程;
(2)过点
作直线交圆C于P、Q两点,点
为圆C内一点,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3de32e9600fe1f96dde546a4be74cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c72762328d6e65c9c06f8a3d6fa1abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8afd0c502453ea825d24dd5596db08e.png)
(1)求圆C的标准方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79dbefeef8b858149bc3dcf7b2ebb133.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71fb572a6f07dcade5332bea766020f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d36626c9e45a25e8dc5bf4be4dbbfb3.png)
您最近一年使用:0次
2020-03-13更新
|
310次组卷
|
3卷引用:甘肃省天水市第一中学2021-2022学年高二下学期学业水平模拟考试(二)数学试题