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Question 140Asked in BPSC TRE 2.0 (2023) Computer Class 9-10

The dual of a Boolean expression is obtained by

  1. Ainterchanging all 0s and 1s
  2. Binterchanging all 0s and 1s, all + and '.' signs
  3. Cinterchanging all 0s and 1s, all + and '.' signs and complementing all the variables
  4. DMore than one of the above
  5. ENone of the above
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Correct answer: (B) interchanging all 0s and 1s, all + and '.' signs

Explanation

The dual is formed by swapping 0 and 1 and also swapping + with '.', without complementing the variables.

From BPSC TRE 2.0 (2023) Computer Class 9-10 — Previous Year Paper

This is question 140 of BPSC TRE 2.0 (2023) Computer Class 9-10 — Previous Year Paper. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.