U = {x ∈ N : 1 ≤ x ≤ 10}, A = {1, 5, 10} হলে, A^c =?

প্রশ্ন: U = {x ∈ N : 1 ≤ x ≤ 10}, A = {1, 5, 10} হলে, A^c =?

সমাধান:
দেওয়া আছে,
U = {x ∈ N : 1 ≤ x ≤ 10}
= {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
A = {1, 5, 10}

A^c = U - A
= {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} - {1, 5, 10}
= {2, 3, 4, 6, 7, 8, 9}