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Ruxandraa1
a fost răspuns

Aflati n, numar natural nenul astfel incat:
Fie [tex]\alpha = \left(\begin{array}{ccccccccc}1&2&3&...&n&n+1&n+2&...&2n\\1&3&5& ...&2n-1&2&4&...&2n\\\end{array}\right)[/tex], [tex]\alpha = permutare \\ para[/tex]