Question

01) Considere os conjuntos: A={1,2,3,4}, B={3,4,5,6} , C={2,3,6,7} e U={1,2,3,4,5,6,8}. Efetue: (A) (A ∪ B) ∩ C (B) A – (B ∩ C)

Answer 1

A={1,2,3,4}, B={3,4,5,6} , C={2,3,6,7} e U={1,2,3,4,5,6,8}.
Efetue: (A) (A ∪ B) ∩ C    (B) A – (B ∩ C)

(A) (A ∪ B) ∩ C = (1,2,3,4) ∪( 3,4,5,6) ∩ (2,3,6,7) 
                          = (1,2,3,4,5,6) ∩ (2,3,6,7) 
                          = ( 2,3,6)
 (B) A – (B ∩ C)
(B ∩ C) = ( 3,4,5,6) ∩ (2,3,6,7) = ( 3.6)

A – (B ∩ C)
(1,2,3,4) - ( 3.6) = ( 1,2,4)