1 . 在极坐标系中,曲线
上恰有3个不同的点到直线
的距离等于1,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35afb47becd6df48e4a805640701945d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74dd334066d0170df1c12777b5319251.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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2 . 以点
为圆心,并且与直线
相切的圆的方程是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/631386549c0cec5981a1da47b05e5d25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/874188b1ad1af65fe2951e3a0c1c0e84.png)
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3 . 过点
的直线
与圆
相交于
,
两点,且
,则直线
的方程为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86022205a7487439dd8d0897cd3bf19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1b45e3ef8f62f0b69ae7391bb263fab.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/84cef568cfe2fc12a4dec11533ada274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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解题方法
4 . 直线
被圆
截得的弦长为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25a35a224b16793ff09d5a5e76a42083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
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5 . 两圆相交于两点(1,3)和(m,1),两圆的圆心都在直线
上,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f80d13c1d01589c89727f94993812dfa.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5747090258c72c65bd243ca9d0f08901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f80d13c1d01589c89727f94993812dfa.png)
您最近一年使用:0次
2016-12-03更新
|
672次组卷
|
2卷引用:辽宁省大连市瓦房店市实验高级中学2019-2020学年高二上学期12月月考数学试题
10-11高一·辽宁铁岭·阶段练习
6 . 直线
;试写出所有满足条件的有序实数对(m,n)_________________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da58901b32885b9c646322951c7922f8.png)
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7 . 若
,
,在以
为圆心,
为半径的圆中,面积最小的圆的标准方程为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f3c44fc270d3b96921ccc26075aee7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
您最近一年使用:0次