Exercise 10 Page 218

First, we will write B in roster form. B={0, 2, 4, 6, 8} A union of two sets is the set that contains all elements found in both sets. Therefore, the union of A and B holds all elements that are in both A and B. Note that a union only contains unique values, so if any elements exist in both sets, we will cross out the duplicates. B&={0, 2, 4, 6, 8} A&={1, 3, 4} A ⋃ B &={0, 1, 2, 3, 4, 6, 8}