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What does A’ denotes when U is a universal set?(a) A(b) Φ(c) U(d) U-AThis question was addressed to me in exam.This intriguing question originated from Complement of a Set topic in section Sets of Mathematics – Class 11

Answer»

The correct answer is (d) U-A

The explanation: Complement of a SET A is a set that CONTAINS elements of U which are not the elements of A. So, A’=U-A.



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