Question

The expression for Absorption law is given by _________

(a) A + AB = A

(b) A + AB = B

(c) AB + AA’ = A

(d) A + B = B + A

I had been asked this question in homework.

I need to ask this question from Boolean Logic Operations topic in chapter Boolean Algebra and Minimization Techniques and Logic Gates of Digital Circuits

Answer 1

Correct choice is (a) A + AB = A

To elaborate: The expression for Absorption Law is given by: A+AB = A.

Proof: A + AB = A(1+B) = A (Since 1 + B = 1 as per 1’s Property).