The boolean function for a combinational circuit with four inputs is…

GATE · 2006 · IT

The boolean function for a combinational circuit with four inputs is represented by the following Karnaugh map.

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Which of the product terms given below is an essential prime implicant of the function?

  1. A.

    QRS

  2. B.

    PQS

  3. C.

    PQ'S'

  4. D.

    Q'S'

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Correct answer: D

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