Question

determinati elementele multimilor A si B stiind ca sunt indeplinite simultan conditiile:A\B={3,7},A intersectat B={4,5} si A intersectat B={x divide x apartine N nr nat,2< sau egal x<8}.repede!!cat mai repede!!dau 99 pct si coroana!!e neaparat!!AJUTATI-MA!!VAA ROGG!!PLS!!!!!!!!!!!!!!!!!!!
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Answer 1

A-B={3,7}
Aintersectat B={4,5}
AUB={2,3,4,5,6,7}

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