what does n(a) or n(b) means in set with formula?
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Answer: For example:
Set of natural numbers = {1,2,3,…..} Set of whole numbers = {0,1,2,3,…..} Each object is called an element of the set. ... n(AᴜB) is the number of elements present in either of the sets A or B. n(A∩B) is the number of elements present in both the sets A and B.
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