Multiple choice general knowledge science & technology

1+p'+q.r+p.(r+q')=?

  1. 1

  2. 0

  3. p+q

  4. p+r
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In Boolean algebra, 1 OR X = 1 for any X. The expression 1 + p' + q.r + p.(r+q') contains 1 ORed with other terms, so the result is always 1 regardless of the values of p, q, and r.

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