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 ±Æ¦C²Õ¦XÃD, ¤£Ãø,¦ý¤£ª¾¿ù¦b¨ºùØ?

¦Û¤@°Æ¼³§JµP¤¤¥ô¨ú 13 ±i¡A¸Õ¨D 13 ±iµP¤¤¦Ü¤Ö¦³¤@±i¶Â®çªº±¡ªp¦³´XºØ?

¸Ñªk1 : ¥ô¨ú13±iªº©Ò¦³²Õ¦X¼Æ - ¨ú¥Xªº13±iµP¤¤ ¨S¦³¶Â®çªº²Õ¦X¼Æ
= C(52,13) - C(13,0)xC(39,13)

¸Ñªk2: ¥ý±q13±i¶Â®ç¨ú¤@±i, ¦A±q³Ñ¾l51±i¥ô¨ú12±i
= C(13,1)xC(51,12)

¥ÑEXECLºâ±o ¸Ñ1 = 6.2689E+11 ¸Ñ2 = 2.06379E+12

¸Ñªk2 ¨ºùئ³¿ù ?

 2006-03-31 11:21
Joy091
Just popping in



µù¥U¤é: 2005-11-15
µoªí¼Æ: 3


 Re: ±Æ¦C²Õ¦XÃD, ¤£Ãø,¦ý¤£ª¾¿ù¦b¨ºùØ?

¸Ñªk2: ¥ý±q13±i¶Â®ç¨ú¤@±i, ¦A±q³Ñ¾l51±i¥ô¨ú12±i
= C(13,1)xC(51,12)

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¥ý¨ú¤F¶Â®ç1¡A¥t¥~¨ú¨ì11±i«D¶Â®ç+¶Â®ç2
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¥ý¨ú¤F¶Â®ç2¡A¥t¥~¨ú¨ì11±i«D¶Â®ç+¶Â®ç1

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³o¨â¦¸´N¬O¦P¼ËªºµP
¦ý¬O¦b³o­Ó¸Ñªk«oºâ¤F¨â¦¸¡C

 2006-03-31 13:55­Ó¤H¸ê®Æ
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 Re: ±Æ¦C²Õ¦XÃD, ¤£Ãø,¦ý¤£ª¾¿ù¦b¨ºùØ?

¤F¸Ñ. ¦hÁ¤F¡I

 2006-03-31 22:59
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 Re: ±Æ¦C²Õ¦XÃD, ¤£Ãø,¦ý¤£ª¾¿ù¦b¨ºùØ?

²Ä¤GºØ·Qªkªº¿ù»~¦b©ó­«½Æ­pºâ¬Û¦Pªº±¡§Î
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¦pªG¯d¤@±i¶Â®ç¨ä¾l12±i³£¿ïªº¤£¬O¶Â®ç´N¨S°ÝÃD
´N¦³13*C(51,12)
¦pªG¯d¤@±i¶Â®ç¨ä¾l12±i¿ï¨ì1±i¶Â®ç´N¥²¶·¦©°£13*C(12,1)*C(50,11)/2
¦pªG¯d¤@±i¶Â®ç¨ä¾l12±i¿ï¨ì2±i¶Â®ç´N¥²¶·¦©°£13*C(12,2)*C(49,10)*2/3
¦pªG¯d¤@±i¶Â®ç¨ä¾l12±i¿ï¨ì3±i¶Â®ç´N¥²¶·¦©°£13*C(12,3)*C(48,9)*3/4
¥H¦¹Ãþ±À

 2006-05-11 12:29
³X«È








 Re: ±Æ¦C²Õ¦XÃD, ¤£Ãø,¦ý¤£ª¾¿ù¦b¨ºùØ?

¹ï¤£°_, ¥´±o¤Ó§Ö,¤W­z¥²¶·§@¨Ç§ó¥¿
²Ä¤GºØ·Qªkªº¿ù»~¦b©ó­«½Æ­pºâ¬Û¦Pªº±¡§Î
²`¤J¤ÀªR
¦pªG¯d¤@±i¶Â®ç¨ä¾l12±i³£¿ïªº¤£¬O¶Â®ç´N¨S°ÝÃD
´N¦³13*C(39,12)
¦pªG¯d¤@±i¶Â®ç¨ä¾l12±i¿ï¨ì1±i¶Â®ç´N¥²¶·¦©°£13*C(12,1)*C(39,11)/2
¦pªG¯d¤@±i¶Â®ç¨ä¾l12±i¿ï¨ì2±i¶Â®ç´N¥²¶·¦©°£13*C(12,2)*C(39,10)*2/3
¦pªG¯d¤@±i¶Â®ç¨ä¾l12±i¿ï¨ì3±i¶Â®ç´N¥²¶·¦©°£13*C(12,3)*C(39,9)*3/4
¥H¦¹Ãþ±À

 2006-05-11 12:37


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