If U- 1- 2- 3- 4- 5- 6- 7- 8- 9- 10 A- 1- 3- 8- 4 and B 2- 7- 3- 9 find A- and nA - B-

A^'=U A ={1,2,3,4,5,6,7,8,9,10} {1,3,8,4} ∴A^'={2,5,6,7,9,10} A∪ B={1,3,8,4}∪{2,7,3,9} ={1,2,3,4,7,8,9} ∴ n(A∪ B)=7 ...

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If U= 1, 2,...

Question

If $U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}$
$A = {1, 3, 8, 4}$ and $B {2, 7, 3, 9}$ find $A^{'}$ and $n (A \cup B)$ .

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