please don't give a wrong answer if you are not sure .

Discrete math

5. List the members of the equivalence relation on {1, 2, 3, 4} defined by the given partition. Also, find the equivalence classes [1], [2], [3], and [4]. (4 points each)

(a) {{1, 2}, {3, 4}}

(b) {{1, 2, 3}, {4}}