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.

D U E = (2, 4, 5, 6, 7)

Step-by-step explanation:

Given

D=(2,5,7),

E=( 2,4,5,6)

F= (1,3,4,5,7)

Required

Elements of D U E

In set notations, when U is used, it means union and it implies the totality of all sets without repetition.

So, given that D=(2,5,7) and E=( 2,4,5,6)

D U E = (2,5,7) U (2,4,5,6)

Merge Sets

D U E = (2,5,7, 2,4,5,6)

Remove Repetitions

D U E = (2,5,7,4,6)

Arrange in ascending order

D U E = (2, 4, 5, 6, 7)

Hence, the elements in set D U E are (2, 4, 5, 6, 7)

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