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Question 42Asked in DSSSB TGT Computer Science (Technical), 1 Aug 2021, Shift 3

What is equivalent of the following Boolean expression? (x + y)' (complement of x + y)

What is equivalent of the following Boolean expression? (x + y)' (complement of x + y)
  1. Ax' + y'
  2. Bxy
  3. Cx'y'
  4. Dx
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Correct answer: (C) x'y'

Explanation

By De Morgan's theorem (x + y)' = x'·y', i.e. x'y'.

From DSSSB TGT Computer Science PYQ (Technical), 1 Aug 2021, Shift 3

This is question 42 of DSSSB TGT Computer Science PYQ (Technical), 1 Aug 2021, Shift 3. 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.