ISRO Electrical Engineering (EE) 2013 - Question 68

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Which of the following Boolean algebra rules is correct?

  • A. A.Ā = 1
  • B. A+AB = A+B
  • C. A+ĀB = A+B
  • D. A(A+B) = B

Answer: C. A+ĀB = A+B

Explanation: A + ĀB = A + B (absorption/redundancy law).

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