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Scrie toate submultimile multimii ☆☆
A={1,4,9 }


Răspuns :

Φ(multimea vida)
(1),(4),(9)
(1,4),(1,9)
(4,9)
(1,4,9)
A={1,4,9}
Submultimile= multimea vida,{1},{1,4},{1,9},{4},{4,9},{9},A