Question

aflati elementele A,B si C care indeplinesc simultan conditiile:A intersectat B={4,5},B INTERSECTAT C={6,7},A intersectat C={2,3} si cardinalul fiecarei multimi este egal cu 4.repede!!cat mai repede!!dau 98 pct si coroana!!e neaparat!!AJUTOR!!AJUTATI-MA!!VAA ROGG!! PLS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Answer 1

A={2,3,4,5}
B={4,5,6,7}
C={2,3,6,7}