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format .pdf, 0.9 MB - Recreaţii Matematice

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Soluţiile problemelor pentru pregătirea concursurilordinnr. 1/2003A. Nivel gimnazialG36. Fie x, n ∈ N ∗ astfel încât x divide 10 n − 1, însă x nu divide 10 k − 1 pentruk

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