Question

Va rog ajutați ma frumos

Answer 1

A={1,2,3,4} B={4,5,6,7,8} C={0,1,2,4,5,6,9}  A U B ={1,2,3,4,5,6,7,8} A U C ={0,1,2,3,4,5,6,9} B U C ={0,1,2,4,5,6,7,8,9}  A n B={4} A n C={1,2,4} B n C={4,5,6}  A/C={3} B/A={5,6,7,8} B/C={7,8} C/A={0,5,6,9}