যদি A = {1, 3, 5, 7, 9, 11}, B = {3, 6, 9, 12} এবং C = {5, 7, 10, 11} হয়, তবে (A - B) ∩ C কত?

প্রশ্ন: যদি A = {1, 3, 5, 7, 9, 11}, B = {3, 6, 9, 12} এবং C = {5, 7, 10, 11} হয়, তবে (A - B) ∩ C কত?

সমাধান:

দেওয়া আছে,
A = {1, 3, 5, 7, 9, 11}
B = {3, 6, 9, 12}
C = {5, 7, 10, 11}

এখন,
A - B
= {1, 3, 5, 7, 9, 11} - {3, 6, 9, 12}
= {1, 5, 7, 11}

অতএব,
(A - B) ∩ C
= {1, 5, 7, 11} ∩ {5, 7, 10, 11}
= {5, 7, 11}

∴ (A - B) ∩ C = {5, 7, 11}।