Question

if U = { 1 3 5 8 9 10 11 12 13 15} A = { 1 11 13} B = { 5 8 10 11 15} find A' , ( AnB)' , ( AUB)​

Answer 1

Given : U = { 1 3 5 8 9 10 11 12 13 15}

A = { 1 11 13}

B = { 5 8 10 11 15}

To Find : A' , ( AnB)' , ( AUB)​

Solution:

A' = U - A

A'  = {   3 5 8 9 10  12   15}

( AUB)​ =  {  1 5 8 10 11   13   15 }

( AnB)' = ( A ∩ B)'

= U -  ( A ∩ B)

A ∩ B  = { 11}

( AnB)' = ( A ∩ B)'  =  { 1 3 5 8 9 10 12 13 15}

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