2014 · Q36
If A is a non-empty subset of a set E, then what is E ∪ ((A∩Φ) - (A - Φ)) equal to?
Elementary MathematicsSets
- AA
- BComplement of A
- CΦ
- DE
Explanation
(A∩Φ) = Φ and (A-Φ) = A, so Φ - A = Φ; E ∪ Φ = E.
If A is a non-empty subset of a set E, then what is E ∪ ((A∩Φ) - (A - Φ)) equal to?
Explanation
(A∩Φ) = Φ and (A-Φ) = A, so Φ - A = Φ; E ∪ Φ = E.