Question

What is the simplification value of MN(M + N’) + M(N + N’)?

(a) M

(b) MN+M’N’

(c) (1+M)

(d) M+N’

I have been asked this question in an interview for job.

I would like to ask this question from Minimization of Boolean Functions topic in division Boolean Algebra and Modeling Computations of Discrete Mathematics

Answer 1

The correct option is (b) MN+M’N’

Easy explanation: Given: MN(M + N’) + M(N + N’)

= MN(M+N’) + M.1

= MNM + MNN’ + M

= MN + 0 +M

= M(N + 1)

= M.