lilymartha2000 lilymartha2000
  • 14-01-2024
  • Mathematics
contestada

1) Montrer que si 2021 divise n-1 alors 2021 divise n ^ 4 - 1

2) Soit n un entier naturel on pose A = (n ^ 2 + n + 3)/(n + 4)

Déterminer les valeurs possibles de n pour que le nombre A soit un entier naturel

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