已知圆
的方程为
.
(1)求圆
的圆心及半径;
(2)是否存在直线
满足:经过点
,且_________________ ?如果存在,求出直线
的方程;如果不存在,请说明理由.
从下列三个条件中任选一个补充在上面问题中并作答:
条件①:被圆
所截得的弦长最长;
条件②:被圆
所截得的弦长最短;
条件③:被圆
所截得的弦长为
.
注:如果选择多个条件分别作答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/082352c06b358a41f623529aee455783.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)是否存在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06ebd2da016e7029c4dd72b9e377190c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
从下列三个条件中任选一个补充在上面问题中并作答:
条件①:被圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
条件②:被圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
条件③:被圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
注:如果选择多个条件分别作答,按第一个解答计分.
21-22高二上·北京东城·期末 查看更多[3]
更新时间:2022-01-15 14:23:07
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【推荐1】已知两直线
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【推荐2】已知椭圆
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b6fc0da4f7703cf4692b9a5e2a3412f.png)
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在这三个条件中任选一个,补充在下面的问题中,并作答(注:如果选择多个条件分别解答,按第一个解答计分)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad20e2bc6576fc461419f8f138d26e7.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a3fa28abed235d9217db1dc7109f29b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44e8bc37ed03f44470762748a8f942a.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d4b2a1c973a9a3bc057a6130624298b.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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