Given:
A = {1,24,5,7,9}
and
B = {2,3,4}
To find A union B, that is, A U B, you have to find the set that contains all elements of A and B.
You can write the numbers in ascending order and do not repeat the numbers that are in
So,
A U B = {1,2,3,4,5,7,9}.
Answer: A U B = {1,2,3,4,5,7,9}.
