Question

Select the statements that are true based on the following given information.
D = {x | x is a whole number}
E = {x | x is a perfect square < 36}
F = {x | x is an even number between 20 and 30}

1.The expression D∩E is {1, 4, 9, 16}.
2.The expression D∩F is {12, 14, 16, 18}.
3.D∪(E∩F) is {all whole numbers}.
4.(E∩F) is the empty set.
5.The expression D∩(E U F) is 25

Answer 1

im sure 1 and 4 are correct but not sure on 3

Answer 2

ok thanks @roza93