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Gate1995_2.5

. What values of A, B, C and D satisfy the following simultaneous Boolean equations?
\(\overline A + AB = 0\), AB = AC, \(AB + A\overline C + CD = \overline {CD}\)
(a) A = 1, B = 0, C = 0, D = 1
(b) A = 1, B = 1, C = 0, D = 0
(c) A = 1, B = 0, C = 1, D = 1
(d) A = 1, B = 0, C = 0, D = 0

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