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¸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)
³oӸѪk¤¤¡A ¥ý¨ú¤F¶Â®ç1¡A¥t¥~¨ú¨ì11±i«D¶Â®ç+¶Â®ç2 »P ¥ý¨ú¤F¶Â®ç2¡A¥t¥~¨ú¨ì11±i«D¶Â®ç+¶Â®ç1
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| 2006-03-31 13:55 | | ³X«È
| Re: ±Æ¦C²Õ¦XÃD, ¤£Ãø,¦ý¤£ª¾¿ù¦b¨ºùØ? | | ¤F¸Ñ. ¦hÁ¤F¡I |
| 2006-03-31 22:59 | | ³X«È
| Re: ±Æ¦C²Õ¦XÃD, ¤£Ãø,¦ý¤£ª¾¿ù¦b¨ºùØ? | | 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(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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