U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, X = {2, 4, 6, 8, 10}, Y = {1, 2, 3, 4} হলে, X´ ∩ Y´ হবে?

প্রশ্ন: U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, X = {2, 4, 6, 8, 10}, Y = {1, 2, 3, 4} হলে, X´ ∩ Y´ হবে?

সমাধান:
দেওয়া আছে,
U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
X = {2, 4, 6, 8, 10}
Y = {1, 2, 3, 4}

তাহলে,
X′ = U - X = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} - {2, 4, 6, 8, 10}
= {1, 3, 5, 7, 9}

Y′ = U - Y = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} - {1, 2, 3, 4}
= {5, 6, 7, 8, 9, 10}

প্রদত্ত রাশি,
X′ ∩ Y′ = {1, 3, 5, 7, 9} ∩ {5, 6, 7, 8, 9, 10}
= {5, 7, 9}

∴ X′ ∩ Y′ = {5, 7, 9}