যদি P = {1, 2, 3, 4, 5, 6}, Q = {2, 3, 4, 6} এবং R = {1, 5, 6} হয়, তবে (P - Q) ∪ R = কত?

A

{1, 2, 5}

B

{1, 5, 6}

C

{4, 5, 6}

D

{2, 6}

উত্তরের বিবরণ

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প্রশ্ন: যদি P = {1, 2, 3, 4, 5, 6}, Q = {2, 3, 4, 6} এবং R = {1, 5, 6} হয়, তবে (P - Q) ∪ R = কত?

সমাধান: 
দেওয়া আছে, 
P = {1, 2, 3, 4, 5, 6}, 
Q = {2, 3, 4, 6} এবং 
R = {1, 5, 6} 

এখন, 
P - Q = {1, 2, 3, 4, 5, 6} - {2, 3, 4, 6} 
= {1, 5} 

∴ (P - Q) ∪ R
= {1, 5} ∪ {1, 5, 6} 
= {1, 5, 6} 
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