已知空间9点集
,其中任意四点不共面.在这9个点间联结若干条线段,构成一个图G,使图中不存在四面体.问图G中最多有多少个三角形?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f503d1fd6c0f5851be772d8be2913525.png)
更新时间:2018-12-17 09:53:09
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(0.4)
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