Question

Let D=(2,5,7), E=( 2,4,5,6), and F= (1,3,4,5,7)
List elements in the set D U E.

Answer 1

The union of sets D and E, written as D U E, consists of the elements {2, 4, 5, 6, 7}, which include all unique elements from both sets without repetition.

Step-by-step explanation:

To find the union D U E of two sets D and E, we need to list all the elements that are in set D, set E, or both, without repeating any elements. The set D contains the elements 2, 5, and 7, while set E contains the elements 2, 4, 5, and 6.

When we combine these sets, the union D U E will have the elements:

• 2 (from both D and E)
• 4 (from E)
• 5 (from both D and E)
• 6 (from E)
• 7 (from D)

Therefore, the elements of the set D U E are {2, 4, 5, 6, 7}.