Răspuns :
∅,{1,2,3},{1,2,4},{1,3,2},{1,3,4},{1,4,2},{1,4,3},{2,1,3},{2,1,4},{2,3,1},{2,3,4},{2,4,1},{2,4,3},{3,1,2},{3,1,4},{3,2,1},{3,2,4},{4,1,2},{4,1,3},{4,2,1},{4,2,3},{4,3,1},{4,3,2}
Sper ca te-am ajutat!
Sper ca te-am ajutat!
Cand spune sumbumtimi sau multimi de nr ordonate atunci folosesti aranjamente cand nu precizeaza ce fel sunt elementele atunci folosesti combinari