Show that each of the relation R in the set A = { x ∈ Z : 0 ≤ X ≤ 12}, given by:

[Murali]

Show that each of the relation R in the set A = { x ∈ Z : 0 ≤ X ≤ 12} given by:
(i) R =
(ii) R = is an equivalence relation. Find the set of all elements related to 1 in each case.

[Murali]