Sets

Which of the following pairs of sets are equal? Justify your answer.
(i) X, the set of letters in “ALLOY” and B, the set of letters in “LOYAL”.
(ii) A = {n : n ∈ Z and n
2 ≤ 4} and B = {x : x ∈ R and x
2 – 3x + 2 = 0}.