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Question 91

Computer Awareness Boolean algebra Easy

Which one of the following boolean algebraic rule is correct?

(A)  A .A’=1

(B)  A+AB=A+B

(C)  A+A’B = A+B

(D) A(A+B)+B

✓ Correct Answer: Option C Verified Solution

📘 Step-by-Step Solution & Detailed Explanation:

(A) \(A \cdot A' = 0\), not 1. False.
(B) \(A + AB = A\), not \(A + B\). False.
(C) \(A + A'B = (A + A')(A + B) = 1 \cdot (A + B) = A + B\). True.
(D) is not even a complete equation.

Answer: (C)

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