danellarussojij504 danellarussojij504 19-05-2023 Mathematics contestada Let a = {1, 2, 3} and r be the following relation on a; r = {(1, 1), (1, 2), (1, 3), (3, 1), (2, 3)} find the symmetric closure of this relation r. [make sure the closure pairs are placed at the end]