名校
解题方法
1 . 如图,在平面直角坐标系
上,有点
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/45579d2d-d10f-4e31-ab66-387a40bf8f04.png?resizew=161)
(1)证明:
是直角三角形;
(2)求
的外接圆方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39ea1f5bdd213c7c3a571b4c38850bf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec5826c0d5fa54cefde115d2bd8c9d4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e09243242c1dd53176fe223abbbb24c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/45579d2d-d10f-4e31-ab66-387a40bf8f04.png?resizew=161)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-01-03更新
|
360次组卷
|
3卷引用:河南省许昌市禹州市高级中学菁华校区2022-2023学年高二上学期期末数学试题
解题方法
2 . 已知平面直角坐标系内四点
,
,
,
.
(1)判断
的形状;
(2)A,B,C,D四点是否共圆,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a26e951d6d2369e8da79a793a93a66a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6299c1e360a6932b6b6549fa8606cce8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/079fdbb7502511d67a394ce0fb792a4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/266a1fd9667006e83c4ad72a177d248e.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)A,B,C,D四点是否共圆,并说明理由.
您最近一年使用:0次