Final Answer:
The question is asking about the cardinality of set b, given that set a is defined as {2,4,6,8}.
The cardinality of a set refers to the number of elements in that set. Therefore, if set b has a cardinality of 5, it means that there are 5 elements in set b.
To find the elements in set b, we need more information as the question does not provide any details about the set b. Without knowing the specific elements in set b, we cannot determine its cardinality.
Explanation:
C such that C = A ∪ B and |C| = 6.
Since the cardinality of B is 5, we know that B = {x, y, z, w, u, v}. We can choose any 5 elements from A to form C. One possible choice is C = {2, 4, x, y, u}. Then, C has 6 elements, and C = A ∪ B.
So, a set C with the specified properties can be found as follows:
C = {2, 4, x, y, u, v}