Which Boolean identity is correct?

  1. A overlineA = 1
  2. A + A = 2A
  3. A 1 = 1
  4. A + overlineA = 1
Answer

D) A + overlineA = 1

Complement law: A + overlineA = 1 and A overlineA = 0. Also A + A = A and A 1 = A. SLO CS-11-A-01 · Knowledge

Computer Science MCQ · More Unit 1: Computer Systems MCQs · Practise