UGC-NET | UGC NET CS 2018 Dec – II | Question 37

The boolean expression A’⋅B+A.B’+A.B is equivalent to
(A) A+B
(B) A.B
(C) (A+B)’
(D) A’.B


Answer: (A)

Explanation:

= A'.B + A.B' + A.B
= A'.B + A.B + A.B'
= B(A' + A) + A.B'
= B + A.B'
= (B+A).(B+B')
= A+B 

Option (A) is correct.

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