Answer
XUYUZ = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18}
Work Step by Step
X = {x | x is an odd whole number less than 16}
X = {1, 3, 5, 7, 9, 11, 13, 15}
Y = {2, 6, 9, 10, 16}
Z = {z | z is an even whole number less than 19}
Z = {2, 4, 6, 8, 10, 12, 14, 16, 18}
We are looking for the union of the three sets. If an element is in one set (at a minimum), then the element is in the union.
XUYUZ = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18}
