QUESTION 14, SET CLASS 11 CHAPTER 1

Описание к видео QUESTION 14, SET CLASS 11 CHAPTER 1

SET CLASS 11 CHAPTER 1
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QUESTION 14.
If A and B are two sets and U is the universal set such that n(A) = 20, n(B) = 30, n(A∩ B)=10 and n(U) = 100. Find n(AUB).

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