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Given the sets A, B and ξ defined as A=1,2,5,7, B=2,3,6,7, ξ=1,2,3,4,5,6,7,8,9,10. Find (a) A', (b) A ∩ B, (c) n(B)
Mathematics
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3 partsa
b
c
4
Voici les solutions pour chaque partie :
a) Pour trouver , nous devons identifier tous les éléments de l'ensemble universel qui ne sont pas dans l'ensemble .
La réponse est .
b) Pour trouver , nous devons identifier les éléments qui sont communs aux ensembles et .
La réponse est .
c) Pour trouver , nous devons compter le nombre d'éléments dans l'ensemble .
L'ensemble contient 4 éléments.
La réponse est .
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