Question

Given A = {1,2,3}, B = {1,2,3,4,5}, and C = { 4, 5, 6, 7}. Evaluate each set
a) A ∩ Bb) A U Cc) B U Cd) (A U B) ∩ Ce) A U (B U C)f) (A ∩ B) ∩ C
g) (A ∩ B) U C

Answer 1

a) {1,2,3} b) {1,2,3,4,5,6,7} c) {1,2,3,4,5,6,7} d){4,5} e) {1,2,3,4,5,6,7} f) null set g){1,2,3,4,5,6,7}

intersection is the set of elements in both sets, union is the set of all elements in one set or the other.

Answer 2

thank you