(3) In each item below, verify that - is an equivalence relation on the given set. (c) Let - be a relation defined on Z by a Rb if and only if a' = b3 (mod 4). Determine the distinct equivalence classes determined by this equivalence relation. (Hint: There are only three distinct such congruence classes.)

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A: Given, For each set partition P of each set X, describe the induced equivalence relation ~p on X.

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Q: 3. Which graph models the relation {(2, 1), (1, 2), (1, -2)}?

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A: We know that

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