When should a don’t-care condition be used as 1 in a Karnaugh map?

Options

  • A. When it helps form larger groups of 1s
  • B. When it increases the number of variables
  • C. When it creates isolated 0s
  • D. It must always be treated as 1
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

A. When it helps form larger groups of 1s

Detailed Explanation

Explanation:
For Sum of Products (SOP) simplification, a don’t-care cell may be treated as 1 if it helps form larger groups of 1s and produces a simpler expression. It is not compulsory to use every don’t-care cell.
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BPSC Tre 4.0 Digtial Electronics Quiz Practice Set 1

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