if n(U) = 73, n(A) =39, n(B) = 37 and n(A∩B) =11 using Venn diagram find n(AUB) and n(A-B).
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Step-by-step explanation:
AUB= A+B-A intersection B
= 39+37-11
=65
A-B= A- A intersection B
= 39-11
= 28
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