7. Identify the most simple POS expression which generates the K-map shown.

  1. (A'+ B')(A'+ B'+ C)
  2. (A + B)(A'+ B'+ C)
  3. (A'+ B')(A + B + C')
  4. (A + B)(A + B + C')
  5. (A + C)(A'+ B'+ C)







3 is CORRECT. The expression entered into the K-map is F=(A'+B')(A + B + C'), obtained by grouping the 0-entries to give a SOP expression for F', followed by complementation of the later expression to yield a POS expression for F.

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