A={-3, -2, -1, 0, 1, 2 ,3}
B=> {-4, -3, -2} intersectat cu {-2, -1, 0, 1, 2, 3}
B= {-2}
C=> {-4, -3,- 2} intersectat cu {-2, -1, 0, 1, 2, 3}
C= {-4, -3, -2, -1}
D= {-3, -2, -1}
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SPER CA TE-AM AJUTAT!!! SUCCES! X