Question

1.Sa se scrie toate submultimile multimii M={3;4}
2.Adevarat sau fals ?
a)1∈{1,2}
b){1,2}⊆{1,2,3}

Answer 1

1. M={3,4}
    Submultimile multimii M sunt: multimea vida(un cerculet taiat),{3},{4},{3,4}

2. a) 1 E{1,2}  (A)
         E=apartine

     b) {1,2}  se include in {1,2,3} (A)