Question

Considerando os conjuntos A = {a, b, c, 1,2,3,4), B = {a, 4), C = {2,3,4} e D = {a,c}
determine (A - B) n(CU D):
A.{a,b,c,1,2,3,4,}
B. {c,2,3)
O C.{a,c,2,3,4).
O D.{b,c,1,2,3).
E.{a,b,1,4).​

Answer 1

( A - B) n ( C U D )

{ b,c,1,2,3} n ( 2,3,4,a,c}

{c, 2,3}