Last Updated : 20 Nov, 2018

The boolean expression AB + AB\’+ A\’C + AC is independent of the boolean variable
(A) A
(B) B
(C) C
(D) None of these


Answer: (B)

Explanation: 

AB + AB\' + A\'C + AC

= A(B + B\') + C(A + A\')

= A + C(/pre)

As the expression is independent of \'B\', option (B) is correct.



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