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Determinati multimile A si B, stiind ca ca sunt indeplinite simultan relatiile:
a) A U B ={1, 2, 3, 4, 5, 6, 7, 8, 9} (REUNIT)
b)B-A= {4, 5, 6, 7, 8} (MINUS)
c){3, 9} n B= multime vida 0 (INTERSECTAT)
d)A n B={1} (INTERSECTAT)
VA ROG AJUTIMA