Exercise 55 Page 774

Since we have the symbol ⋃, we are looking for the union of the given sets. J&={4,5,6,7} K&={1,4, 7, 10} The union of two sets is the set that contains all elements found in either set. Therefore, the union of J and K holds all elements that are either in J or K. Note that a union only contains unique values, so will cross out duplicates, if any. J&={ 4,5,6, 7} K&={1,4, 7, 10} J ⋃ K &={1, 4, 5, 6, 7, 10}