若圆
与圆
有
条公切线,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d35b72c9b8ccee69c7d5986de9900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() |
更新时间:2023-11-12 10:06:29
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【推荐2】在
中,
,
,
,点
在边
上,
,
的半径长为3,若
与
相切,且点
在
内,则
的半径长度为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae8221601c7bd5c51fd520615581fa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c24a968c73e960698a572ab01e3698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c20d0b44025a639ce3a92d639dae587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c72c070f4f4d2b44927391b59a1e755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c20d0b44025a639ce3a92d639dae587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c72c070f4f4d2b44927391b59a1e755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c72c070f4f4d2b44927391b59a1e755.png)
A.2或8 | B.5或8 | C.5 | D.8 |
您最近一年使用:0次
单选题
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较易
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【推荐1】已知圆
和圆
,则两圆公切线的条数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70feca8eac775ebee7b6d9760e2be6f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d260b618782c8dc983341317735a2737.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
单选题
|
较易
(0.85)
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【推荐2】已知圆
,则
,则圆M与圆N的公切线条数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3f310eb8ee8025dc14b4e4bd71d7b63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97bfc2822e159c4e703654e5f3d529af.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次