Question

If A = {1, 2, 3, 6), B = {2,4,6,8), and C = {4,5,8,
9), find (A U B)-C and (A intersection B) - (C intersection A).​​

Answer 1

(A ∪ B)-C={1,2,3,6}

(A ∩ B)-(C ∩ A)={2,6}