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Question 86

In Boolean Algebra, the expression a + a . b is equivalent to:

  1. Aa
  2. Bb
  3. Ca . b
  4. Da + b
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Correct answer: (A) a

Explanation

By the absorption law, a + a·b = a(1 + b) = a·1 = a.

From DSSSB TGT Computer Science Practice Set 2

This is question 86 of DSSSB TGT Computer Science Practice Set 2. 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.