5759| 21
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[数列] $1^6+2^6+3^6+....+n^6$的公式是? |
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楼主|
realnumber
发表于 2014-3-27 17:32
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楼主|
realnumber
发表于 2014-3-27 18:29
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楼主|
realnumber
发表于 2014-3-31 07:45
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