U ={1,2,3,4,5,6}, A ={1,2,3}, B = {2,4,6} হলে,  A'\( \cap \)B' কত হবে- 

A    {1, 2}

B    {5} 

C    {1,3,5} 

D    {2,4} 

Solution

Correct Answer: Option B

   A' = U - A = {1,2,3,4,5,6} - {1,2,3} = {4,5,6} 

       B' = U - B = {1,2,3,4,5,6} - {2,4,6} = {1,3,5} 

   

   A'\( \cap \)B' = {4,5,6}\( \cap \){1,3,5} = {5} 

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