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[AB] n [AB]
(AB) / [AB]
[AB] / (AB)

Ajutați-ma urgent va rog


Răspuns :

[AB] ∩[AB]=[AB]
(AB)/[AB]=∅
[AB]/(AB)={A, B}
[AB] n [AB] = [AB]
(AB) \ [AB] = multime vida
[AB] \ (AB) = {A, B}