Maths-
General
Easy

Question

Let A and B be two non-empty subsets of a set X such that A is not a subset of B. Then,

  1. (a) A is a subset of complement of B  
  2. B is a subset of A  
  3. A and B are disjoint  
  4. A and the complement of B are non-disjoint  

The correct answer is: A and the complement of B are non-disjoint

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