Question

1)Fie X={1,2,3,4,5}, Y={ 3,4,5,6,7,8}. Determinati :X∪Y; X∩Y, X\Y, Y\X.

Answer 1

X ∪ Y= {1,2,3,4,5,6,7,8} 
X ∩ Y= {3,4,5}
X\Y= {1,2}
Y\X= {6,7,8}