Question

Select the correct answer.

Given
D = {xIx is a whole number}
E = {xl x is a perfect square between 49 and 100}
F={xl x is an even number between 10 and 20}
The expression Du F means...
The expression DNF means
The expression Dn E means
The expression E N F means
The expression Dn (EU F) means

Answer 1

Explanation:

D = x

D = {0, 1, 2, 3, 4,......}

E = x is a perfect square between 49 and 100

E = {64, 81}

F = x

F = {12, 14, 16, 18}

D∪F = x is whole number

D∩F = x is an even number between 10 and 20

D∩E = x

E∩F = {null set}

D∩(E∪F) = {12, 14, 16, 18, 64, 81}