Boolean Algebra Quiz

Given that F = A'B'+ C'+ D'+ E', which of the following represent the only correct expression for F'?
  1. F'= A+B+C+D+E
  2. F'= ABCDE
  3. F'= AB(C+D+E)
  4. F'= AB+C'+D'+E'
  5. F'= (A+B)CDE

F'= ABCDE is WRONG. You did not correctly apply DeMorgans Theorem on the A'B' term.

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Composed by David Belton - April 98