巧证公式1~2+2~2+3~2+…+n~2=n(n+1)(2n+1)/6
Publisher: 国家哲学社会科学学术期刊数据库
E-ISSN: 2095-38t9|volume|4Z|6-
ISSN: 2095-38t9
Source: 文理导航, Vol.volume, Iss.4Z, 2016-01, pp. : 6-
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Abstract