Determine whether each of these pairs of sets are equal.a) {1, 3, 3, 3, 5, 5, 5, 5. 5}, {5, 3, 1}________________b) {{l}}.{l,{l}} ________________c) ?,{?}

Solution:Step 1:In this question, we have to determine the given pairs are equal.Step 2:Given that:{1, 3, 3, 3, 5, 5, 5, 5. 5}, {5, 3, 1}Suppose A ={1, 3, 3, 3, 5, 5, 5, 5. 5}B = {5, 3, 1}Here, we can say that , A contain all the elements of B & B contain all the elements of A.So, AIn this condition, we can say that each of these pairs of sets are equal