5把钥匙的环型钥匙串上加两把钥匙,问这两把钥匙相邻的概率
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新语丝读书论坛
送交者: lanzhongdan 于 2006-12-11, 02:25:08:
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don't ask homework online, this is a hw question in
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xj
(43 bytes)
2006-12-11, 08:43:05
(115192)
出些题目给大家好玩而已
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lanzhongdan
(19 bytes)
2006-12-11, 10:18:57
(115202)
1/3 is right
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qtl
(296 bytes)
2006-12-11, 07:15:19
(115186)
of course, the keys are to be inserted blindly (无内容)
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qtl
(0 bytes)
2006-12-11, 07:17:30
(115187)
1/3 (无内容)
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Independent
(0 bytes)
2006-12-11, 06:45:49
(115181)
1/3=6把钥匙加一把,新钥匙与某一钥匙相邻的概率 (无内容)
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Kurt
(0 bytes)
2006-12-11, 07:10:49
(115185)
a much better solution than mine
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qtl
(29 bytes)
2006-12-11, 07:19:17
(115188)
1/2 (无内容)
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鹏归
(0 bytes)
2006-12-11, 02:34:51
(115176)
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