Question

Help me pls :D Dau coroana

Answer 1

AUB={1,2,3,4,5,6,7,9,11,13}
A|~|B={3,5,7}
A-B={2,4,6}
B-A={1,9,11,12}

Answer 2

AUB ={ 1 2 3 4 5 6 7 9 11 13}
A intersectat cu B ={ 3, 5,7}
A-B= { 2 4 6}
B-A= { 1 9 11 13}