De-a valma…

Suma patratelor – demonstratie fara cuvinte 8 July 2013

Filed under: Amestecate,FREE DOWNLOAD,Resurse — Sorin Borodi @ 20:10
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  Deducerea formulei \mathbf{1^{2}+2^{2}+3^{2}+...+n^{2}=\frac{n(n+1)(2n+1)}{6}}
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2 Responses to “Suma patratelor – demonstratie fara cuvinte”

  1. Anonymous Says:

    Demonstreaza nu arunca formula

  2. […] Pentru suma patratelor 1²+2²+3²+…+n² click aici […]


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