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GATE CSE Sets — practice questions

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Set theory — true or false?Read the answer and worked solution →

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Set theory — true or false?

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Questions
  1. Statement is true
    Yes
    Statement
    |A ∪ B| = |A| + |B| − |A ∩ B|.
  2. Statement is true
    Yes
    Statement
    The empty set is a subset of every set.
  3. Statement is true
    No
    Statement
    (A ∪ B)' = A' ∪ B' (De Morgan).
  4. Statement is true
    Yes
    Statement
    (A ∩ B)' = A' ∪ B' (De Morgan).

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