Cristian Calude, proba pe echipe, R.I, P.IV

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Laurian Filip
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Cristian Calude, proba pe echipe, R.I, P.IV

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Sa se determine numarul matricelor inversabile in \( M_n(\mathbb{Z}) \), \( n\geq3 \), care au exact \( n \) minori nenuli de ordin \( (n-1) \).
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