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Determinati multimea A care indeplineste simultan conditiile:
A inclus{1,2,3,4},A inclus{1,3,5} si {1,3}inclus A.repede!!cat mai repede!!dau 98 pct si coroana!!e neaparat!!AJUTOR!!AJUTATI-MA!!VAA ROGGG!!PLS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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sunt singura la casa!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Răspuns :

Ada28
A inclus in {1,2,3,4} ; A inclus in {1,3,5} rezulta A nu include {2,4,5}
Din A nu include {2,4,5} rezulta ca A include {1,3}
Si cum A include {1,3} si A este inclus in {1,3} rezulta A={1,3}

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