A, B, C and D are four sets such that A ∩ B = C ∩ D = Ø :

A, B, C and D are four sets such that A ∩ B = C ∩ D = Ø. Consider the following:
1. A ∪ C and B ∪ D are always disjoint.
2. A ∩ C and B ∩ D are always disjoint.
Which of the above statements is/are correct?

  1. 1 only
  2. 2 only
  3. Both 1 and 2
  4. Neither 1 nor 2
Anurag Mishra Professor Asked on 3rd October 2015 in Maths.
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