楼主: 水皮
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0,0,8,24,48,( ) |
发表于 08-8-7 08:31
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发表于 08-8-7 12:13
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发表于 08-8-7 14:38
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Re:0,0,8,24,48,( )80。0-0 8-0 24-8 48-24
0 8 16 24 (32)=?-48 ?=80 | |
发表于 08-8-7 16:03
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Re:0,0,8,24,48,( )做差做更简单 0 8 16 24 32 48+32=80
用奇数平方减1 也可以 -1^2-1 1^2-1 3^2-1 5^2 -1 7^2-1 9^2-1 =80 | |
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