3. Sendo U = {1, 2, 3, 4, 5, 6, 7, 8, 9}; A = {1, 3, 5, 7, 9}; B = {2, 4, 6, 8} e C = {1, 2, 3, 5}, calcule:



a) A  C = b) B  C =



c) A  B = d) A  C =



e) A – C = f) C – A =



g) A – B = h) B – A =





i) A= j) C =



k) AB = l) AC =



m) AB = n) AC =



o) ( A – B )  C = p) ( A – C )  ( B – C ) =

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