what does it mean:- n(A U B)
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number of elements in set A∪B
example:
A= {1,2,3} , B= { 1,3,5,8}
A∪B ={1,2,3,5,8}
n(A) =3
n(B)=4
n(A∪B) =5
example:
A= {1,2,3} , B= { 1,3,5,8}
A∪B ={1,2,3,5,8}
n(A) =3
n(B)=4
n(A∪B) =5
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