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[几何] 变态题看谁有简便方法

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nijupeng Posted 2015-9-1 21:21 |Read mode
单位球面上正十二面体,求各个顶点到Z轴距离的平方和的最大值与最小值

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wzxsjz Posted 2015-9-28 12:00
回复 1# nijupeng


    哪儿的题,感兴趣!

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 Author| nijupeng Posted 2015-12-1 20:40
某物理题,出处难找。我也是用软件算出结果的

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