圆
,
,求圆心到直线
的距离________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90bb6703fbc0e91ca66f678a93f5044d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212518702ce7bf161b1ace0c995f785e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
更新时间:2017-07-20 21:44:50
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相似题推荐
填空题-单空题
|
容易
(0.94)
解题方法
【推荐1】直线
与圆
相交于
,
两点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eab0ffec8f46fe46fbc6e8e13d16a58b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b456bffc4db89c5c24f93b89110489.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/88bee8e70f1fab639be1636c7bce0477.png)
您最近一年使用:0次
填空题-单空题
|
容易
(0.94)
【推荐2】若二元二次方程
表示圆,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27a982a8a00c840c6bd79051935fd361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次