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submultimile nr
a){1,2}
b){2,3,5}
c){a,b,c}


Răspuns :

a){1}, {2},{2,1}
b){2},{3},{5},{2,3}, {3,2}, {3,5}, {2,5}
c){a},{b},{c},{a,b}, {a,c}, {b,a}, {b,c}, {c,a}, {c,b}
Sper ca te-am ajutat!