Question

If A = {1, 3, 4, 8} and B = {3, 6, 8, 9, 12}, find:
I. A – B
II. B – A
III. A∪B and A∩B

Answer 1

1. A - B = {1, 4}

2. B – A = {6, 9, 12}

3. A ∪ B = {1, 3, 4, 6, 8, 9, 12}

A ∩ B = {3, 8}