Question

sabendo -se que A U B = ( 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 20 ) , A U B = ( 12 , 14 , 16 , 18 ) e B = ( 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ) , determine o conjunto A

Answer 1

AU B = (11,12,13,14,15,16,17,18,20 ) A ^ B = ( 12 , 14 , 16 , 18 ) B = (11,12 , 13 , 14 , 15 , 16 , 17 , 18 )
A = {  12, 14,16, 18,20 }