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[几何] 请教一道最小距离问题

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25717246 posted 2019-7-16 17:33 |Read mode
已知点$P$为圆$x^2+y^2=1$上的动点,$Q(5,0),R(0,6)$,求$PQ+2PR$的最小值

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kuing posted 2019-7-16 18:09
已知点$P$为圆$x^2+y^2=1$上的动点,$Q(5,0),R(0,6)$,求$PQ+2PR$的最小值
25717246 发表于 2019-7-16 17:33
麻烦检查一下题目有没有打错。

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original poster 25717246 posted 2019-7-16 18:12
回复 2# kuing
一道群题,好象是阿圆,但好象又不好处理

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kuing posted 2019-7-16 18:13
如果不是打错题,那就得扔掉了。

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original poster 25717246 posted 2019-7-16 18:17
回复 4# kuing
如果没有优美的解法,可不可以强撸呢

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