Question

If Upper A equals StartSet x | x is an even integer EndSet commaA=x , Upper B equals StartSet x | x is an odd integer EndSet commaB=x , Upper C equals StartSet 2 comma 3 comma 4 comma 5 EndSet commaC={2, 3, 4, 5}, and Upper D equals StartSet 8 comma 9 comma 10 comma 11 EndSet commaD={8, 9, 10, 11}, list the​ element(s) of the following set. C union∪ D

Answer 1

C ∪ D = {2, 3, 4, 5, 8, 9, 10, 11}

Explanation:

A=x

B= x is an odd integer,

C={2, 3, 4, 5},

D={8, 9, 10, 11}.

A union of two or more sets is the collection of the members of the sets in a set without repeating any element.

Given sets C and D above, the union of the two sets is the set:

C ∪ D = {2, 3, 4, 5, 8, 9, 10, 11}

Note: The Intersection is the collection of sets that are common to C and D. in this case no element is common, therefore the intersection is a Null Set.