যদি U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, P = {1, 2, 5} এবং Q = {6, 7} হয়, তবে P ∩ Q’ = ?

প্রশ্ন: যদি U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, P = {1, 2, 5} এবং Q = {6, 7} হয়, তবে P ∩ Q’ = ?

সমাধান:
দেওয়া আছে,
U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
P = {1, 2, 5} এবং Q = {6, 7}

এখন,
Q’ = U - Q = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} - {6, 7}
= {1, 2, 3, 4, 5, 8, 9, 10}

P ∩ Q’ = {1, 2, 5} ∩ {1, 2, 3, 4, 5, 8, 9, 10} = {1, 2, 5} = P

∴ P ∩ Q’ = P