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Let U = {1, 2, 3, 4, 5, 6, 7, 8} be the universal set and A = {1, 3, 5, 7}. Find A'.

  • A.{1, 3, 5, 7}
  • B.{}
  • C.{2, 4, 6, 8}
  • D.{1, 2, 3, 4, 5, 6, 7, 8}

Answer: C

The complement contains everything in the universal set that is not in \( A \).

\[ A' = \{2, 4, 6, 8\} \]

Together \( A \) and \( A' \) make up the whole of \( U \) and share nothing.

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