The answers to the questions are
(i) B - A = Ф / null set
(ii) A - B = {1, 2, 3, 5, 6, 8, 9}
(iii) (A - B) ∩ (B - A) = Ф / null set
(iv) (A - B) ∪ (B - A) = {1, 2, 3, 5, 6, 8, 9}
A set contains different elements which are mathematical objects of any kind such as numbers, points, spaces, lines e.t.c.
Different types of set are -singleton setsfinite and infinite setsempty or null sets equal sets unequal sets equivalent sets overlapping sets disjoint sets subsets super sets power sets universal sets
According to question,
i ] B - A = 0/null set
ii ] A - B = [ 1,2,3,5,6,8,9 ]
iii ] (A-B) n (B-A) = 0/ null set
iv ] (A-B) u ( B-A) = [ 1,2,3,5,6,8,9 ]
Hence, the answers to the questions are
(i) B - A = Ф / null set
(ii) A - B = {1, 2, 3, 5, 6, 8, 9}
(iii) (A - B) ∩ (B - A) = Ф / null set
(iv) (A - B) ∪ (B - A) = {1, 2, 3, 5, 6, 8, 9}
To understand more about Set Theory refer - brainly.com/question/13458417#SPJ9