直线
与圆
的位置关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09324568f2f3995b2f932e66ee5926ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b73c488227ec6f650db8e2d0994b765.png)
A.相交 | B.相切 | C.相交且过圆心 | D.相离 |
更新时间:2021-10-14 22:37:03
|
【知识点】 判断直线与圆的位置关系
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单选题
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较易
(0.85)
【推荐1】已知圆
,点
为直线
上的动点,过点
作圆
的两条切线,切点分别为
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac639dcb97f511a7264fa56b0376b8a.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】集合
,
,则
的元素个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c4277706ae88782760186e927a03410.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6ac7b43a69fe0720b586855ec3ecacf.png)
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A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次