Question

A = {2, 4, 5, 7, 8}
B = {3, 5, 8, 9}
What is A U B?

Answer 1

nevermind

Answer 2

thanks though

Answer 3

Union just means the set that includes all the values in both sets (except you don't want duplicates). Does that help? A U B includes all values in A and B, with no duplicates (like the 8)