名校
解题方法
1 . 在平面直角坐标系中,已知圆心
在直线
上的圆
经过点
,但不经过坐标原点,并且直线
与圆
相交所得的弦长为4.
(1)求圆
的一般方程;
(2)若从点
发出的光线经过
轴反射,反射光线刚好通过圆
的圆心,求反射光线所在的直线方程(用一般式表达).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f52cb58b6bc5d71030463ba7e28134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d272c9b0e6b1357db99c0c9e5917f41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abeb57d8e728c8d9bd15e8902b70a80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若从点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa6f46416be54b6ccb2fe0c5fc9c3601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2018-01-25更新
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815次组卷
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4卷引用:广东省珠海市2017-2018学年高一上学期期末考试数学试题