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venerdì 18 luglio 2014

Dimostrazioni senza parole: differenze tra cubi

\[(n+1)^3 - n^3 \equiv 1 \mod 6\]

Claudi Alsina,, Roger Nelsen,, & Hasan Unal (2014). Proof Without Words: The Difference of Consecutive Integer Cubes Is Congruent to 1 Modulo 6 The College Mathematics Journal, 45 (2), 135-135 DOI: 10.4169/college.math.j.45.2.135 (facebook)

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