不论
为何值,直线
恒过的一个定点是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9129178eab898ccbdfb2dc9e7966b594.png)
更新时间:2016-12-04 02:48:00
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【知识点】 直线过定点问题
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【推荐1】已知圆
:
及直线
:
,设直线
与圆
相交所得的最长弦长为
,最短弦为
,则四边形
的面积为______ .
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解题方法
【推荐2】直线
与圆
的交点的个数是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4022404158a19da85fe55773ebd331a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30093078a92ef2c2d79ab24d82b7b013.png)
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