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ÁÐÈçT=9
ÄÇô¾ÍÖ»ÓÐÓÐÒ»×é2£¬3£¬4 ¡£    2+3+4=9
T=100
T=200 ?
T=300 ?
T=400 ?
...
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[ Last edited by Âûݼ on 2008-11-16 at 13:56 ]
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ccm5411

Òø³æ (СÓÐÃûÆø)

N + (N+1) + (N+2) + (N+3) ... = TT
2N+1 = TT  or 3N+3 = TT or 4N+6 = TT or 5N+10 = TT  & N is an integer

can you find the rule?



(TT-1)/2  or (TT-3)/3  or (TT-6)/4  or (TT-10)/5  or (TT-16)/6  is an integer.....

[ Last edited by ccm5411 on 2008-11-15 at 09:49 ]
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3Â¥2008-11-15 09:46:25
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shinevip

ľ³æ (ÕýʽдÊÖ)

1)ÓÃÒª¼ÆËãµÄÊý×Ö³ýÒÔ2,3,4,5.....n,µÃµ½ÓàÊý.
2)ÈôÓàÊýΪÕûÊý,È¡ÆäÕý¸º1,2,3...n/2·¶Î§ÄÚµÄÊý×Ö,¼ÓÆðÀ´ÊDz»ÊǵÈÓÚÔ­À´µÄÊý.
Ò²Ðí´ÓÓàÊý¿ÉÒÔÅжÏÊÇ·ñÓбØÒª½øÐеÚ2²½¼ÆËã.ÕâÑù¾Í¸ü¼òµ¥ÁË.²»ÏëÁË,Áô¸øÆäËûÈËȥ˼¿¼°É.
PS¡¡TT=100  (Answers: 5~20   38~42),Õâ¸ö´ð°¸ÈÃÈË¿´²»¶®

[ Last edited by shinevip on 2008-11-13 at 20:31 ]
2Â¥2008-11-13 20:12:06
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liulou239

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²»´í ÓŵãüĿÁË Ó¦¸ÃÄÜÕÒµ½¹æÂÉÁË
4Â¥2008-11-15 16:04:59
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