Editing 15698

Revision as of 22:23, 11 December 2023 by Vancea Denisa (talk | contribs) (Pagină nouă: '''E:15698 (Cristina Vijdeluc și Mihai Vijdeluc, Baia Mare)''' ''Determinați numerele naturale a, b, c pentru care'' ''(2020a)<sup>2 +</sup> (2021b)<sup>2</sup> = 2022c<sup>2</sup> .'' '''Soluție:''' Vom folosi proprietatea: dacă suma pătratelor a două numere naturale este divizibilă cu 3, atunci fiecare număr este divizibil cu 3. Această proprietate reiese din faptul că, daca n ϵ ℕ nu este divizibil cu 3, atunci n<sup>2</sup> =)
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