Question

D = {xlx is a whole number}E = {xlx is a perfect square between 1 and 9)F = {xlx is an even number greater than or equal to 2 and less than 9)DNF is {4, 6).TrueFalse

Answer 1

In order to determine the answer of the question, it is necessary to determine the intervals for each given group.

For D you have:

D = {xlx is a whole number} = {-∞,..., -3,-2,-1,0,1,2,3,...,∞}

There are infinite integer numbers

For F:

F = {xlx is an even number greater than or equal to 2 and less than 9}

F = {2,4,6,8}

When you make the interceptions of the previous sets, that is, when you search for the common elements of both sets, you obtain:

D∩F = {2,4,6,8} = F

Hence, the answer is that the stament D∩F = {4,6} is False.