1 . 已知点A是圆
:
上一点,点B在直线l:
上,则
的最小值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb6101e45f8d7013bc3dc4197188c0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4102a845a9223bb43ec69783a4745d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f51368c95c82e70ae64417b201be3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/526253844494fed86429e1390505e0db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.![]() | B.![]() | C.![]() | D.3 |
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2018-12-08更新
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2卷引用:【校级联考】重庆市南川三校联考2018-2019学年高二(上)期中数学(理科)试题