the union of (a,b,c,d)and (14,15)

To find the union of two sets, you need to combine all the unique elements from both sets without repetition. In this case, the union of the sets (a, b, c, d) and (14, 15) would be a new set containing all the unique elements from both sets.

To determine the union of these sets, you can simply list all the elements from both sets:

Union = (a, b, c, d, 14, 15)

As long as there are no duplicate elements within each set, every element will be included in the union exactly once.