如图,在等腰
中,
,以点O为圆心的
的半径为2,点P是直线
上的一动点,过点P作
的一条切线
,Q为切点,则切线长
的最小值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/ee756dea-96e0-49e6-916c-c80812663d5d.png?resizew=188)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b352fa3e781df195ceccca90c3932a.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/ee756dea-96e0-49e6-916c-c80812663d5d.png?resizew=188)
A.![]() | B.3 | C.![]() | D.![]() |
更新时间:2018-01-01 17:18:17
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【推荐1】如图,在
中,
为直角,先以点A为圆心,任意长为半径画弧,分别交
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【推荐2】如图,
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