Question

9. Given A = {1, 2, 3, 4, 5, 6, 7, 8, 9} and B = {2, 4, 6, 8}, what is A∪B?

Answer 1

A U B means "A union B".

This means to unite all elements found in both sets into one set without repetition.

AUB = {1,2,3,4,5,6,7,8,9} U {2,4,6,8}

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

Answer 2

a union B is the set containing all elements in set A and set B there for A union B is the set {1 2 3 4 5 6 7 8 9}