a) Find $n(A cup B)$ where $n(U) = 100$, $n(A) = 75$, $n(A cap B) = 25$, $n(B) = 40$. Also show the results in Venn-diagram.
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Step 1: Understand the given information We are given the following information: - n(U) = 100 (total number of elements in the universal set U) - n(A) = 75 (number of elements in set A) - n(A ∩ B) = 25 (number of elements in the intersection of sets A and B) - n(B) Show more…
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