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determinati AUB,A-B B -A din multimile A={2,4,6.8,10} B={1,3,5,7} si A ={xE N\ 5x -1

Răspuns :

AUB=1,2,3,4,5,6,7,8,10 A-B=2,3,4,6,8,10 B-A=1,3,5,7
AUB=1 2 3 4 5 6 7 8 10
A-B=2 3 4 6 8 10
B-A=1 3 5 7