[中學] 夫妻排列問題
4對夫妻排成一列
求同對夫妻不相鄰的機率
拜託各位了
小弟想了很久還是算不出來
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推
04/14 11:57, , 1F
04/14 11:57, 1F
→
04/14 12:01, , 2F
04/14 12:01, 2F
→
04/14 14:22, , 3F
04/14 14:22, 3F
→
04/15 23:26, , 4F
04/15 23:26, 4F
→
04/15 23:27, , 5F
04/15 23:27, 5F
→
04/15 23:27, , 6F
04/15 23:27, 6F