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GATE | GATE IT 2006 | Question 35
  • Difficulty Level : Easy
  • Last Updated : 02 May, 2016

The boolean function for a combinational circuit with four inputs is represented by the following Karnaugh map.
2006_35

Which of the product terms given below is an essential prime implicant of the function?
(A) QRS
(B) PQS
(C) PQ’S’
(D) Q’S’


Answer: (D)

Explanation: Essential prime implicants are prime implicants that cover an output of the function that no combination of other prime implicants is able to cover.

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