推 KOBEII:C12取2 12X11/2! ? 07/06 22:57
→ matilde207:看懂了 非常感謝! 07/06 23:12
推 cu343:也可以用11+10+9+....+1 07/07 00:05
GWD12 Q2.
If each of the 12 teams participating in a certain tournament
plays exactly one game with each other teams, how many games will be played?
Ans: 66
可以請會的人告訴66是怎麼計算出來的嗎
謝謝!
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