Question

Let A = { 0 , 2 , 4 , 6 } , B = { 1 , 2 , 3 , 4 , 5 } , and C = { 1 , 3 , 5 , 7 } . Find { x ∣ x ∈ B or x ∈ C } .

Answer 1

{1, 2, 3, 4, 5, 7}

Explanation:

x in B or C is ...

B ∪ C = {1, 2, 3, 4, 5, 7}