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1) Scrie toate submultimile multimi { 3,2,7,9,1} care îl contin pe 1
2) Scrie toate submultimile multimi {1,2,3,5}


Răspuns :

1){1},{1,2},{1,3},{1,7},{1,9},{1,2,3},{1,2,7},{1,2,9}, {1,3,7},{1,3,9},{1,7,9},{1,2,3,7},{1,2,3,9},{1,3,7,9},{1,2,3,7,9}----------------- 2)∅,{1},{2},{3},{5},{1,2},{1,3},{1,5},{2,3},{2,5},{3,5}, {1,2,3},{1,2,5},{1,3,5},{2,3,5},{1,2,3,5}.