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A={x|x cifra para} B={x|x ∈ N*,x ≤ 5}
Calculati: AUB,AnB,A-B,B-A


Răspuns :

A={0,2,4,6,8}
B={1,2,3,4,5}

AUB={0,1,2,3,4,5,6,8}
AnB={2,4}
A-B={0,6,8}
B-A={1,3,5}