已知过定点
的直线
与圆
相切于点
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb49d0de757cbe70350700eb13aed462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d8fe459514319f5e7dea93efcdcd3bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
更新时间:2020-11-09 17:22:16
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相似题推荐
填空题-单空题
|
适中
(0.65)
解题方法
【推荐1】直线
必定经过定点_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b48ff942d40fd0f028fd406b82ac926.png)
您最近一年使用:0次
填空题-单空题
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适中
(0.65)
解题方法
【推荐2】若直线
与圆
相交于
两点,则弦长
的最小值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed790b4fb3c4d8bda9a7f15697d7c60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ca01d1c400707e011745ad16199da13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084cf5ffced059f5653ee2a1023518b7.png)
您最近一年使用:0次
填空题-单空题
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适中
(0.65)
名校
解题方法
【推荐1】过点P(3,1)作⊙
的两条切线,切点分别为A、B,则弦AB的长为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f11fd14d67ee5f24867331c3f950583.png)
您最近一年使用:0次
填空题-单空题
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适中
(0.65)
【推荐2】已知圆
和圆
,过动点
分别作圆
,圆
的切线
,
(A,
为切点),且
,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560adea7b0d4fbe4131fc41f3fcbd871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2390c3620d076f200ec790b8d0c09a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5c4882a2713d22cc8bb19cc51548b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce5dcaffd91bc44cda4a2e44000ae73.png)
您最近一年使用:0次