Question

Let A={2,3,4,6}
Let B={5,7,8}
Let C={2,7,8,9}
Find--
1.A U B
2.A ∩ C
3.A U B U C
4.B∩ C

Answer 1

Answer:

1.{2,3,4,5,6,7,8,9}

2.{2}

3.{2,3,4,5,6,7,8,9}

4.{7,8}