Given D = x. E = x. F = x. 1. The expression D∪F means (64 and 81) OR (all whole numbers). 2. The expression D∩F means (16,22,24,18) OR (12,14,16,18). 3. The expression D∩E means (all whole numbers) OR (64,81). 4. The expression E∩F means (all whole numbers) OR (empty set). 5. The expression D∩ (E∪F) means (empty set) OR (81,64,12,14,16,18)

Question

Tomas Perkins

Mathematics

8 March, 12:53

Given D = x. E = x. F = x. 1. The expression D∪F means (64 and 81) OR (all whole numbers). 2. The expression D∩F means (16,22,24,18) OR (12,14,16,18). 3. The expression D∩E means (all whole numbers) OR (64,81). 4. The expression E∩F means (all whole numbers) OR (empty set). 5. The expression D∩ (E∪F) means (empty set) OR (81,64,12,14,16,18)

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Answers (2)

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Liliana Ibarra · Answer 1

Given D = x is a whole number

E = x

F = x The expression D ∪ F means: all whole numbers

(The expression D ∩ F means: 12, 14, 16, 18)

^I got this one wrong using this site^

The expression D ∩ E means: 64, 81

The expression E ∩ F means: the empty set

The expression D ∩ (E ∪ F) means: 81, 64, 12,14, 16, 18

I've fact checked these answers

Giuliana Salazar · Answer 2

DUF is all whole numbers because the definition of a union is the set that contains both sets.

DNF means (16,22,24,18) because an intersection is the common numbers between the sets

DNE means (64,81)

ENF is an empty set

DN (EUF) = (81,64,12,14,16,18)

Good luck I hate sets and set proofs