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Boolean algebra question

  1. Apr 15, 2012 #1
    1. The problem statement, all variables and given/known data
    The question is shown in the picture attached. I have also attached my attempt of the circuit using logic gates.

    3. The attempt at a solution

    This is my answer:

    A’.B.C’.D’ + A’.B.C.D + A.B’.C’.D’ + A.B’.C’.D + A.B’.C.D’ + A.B.C.D’

    = B.A’(C’.D’+C.D) + A.C.D’ + B’.A.C’

    =B.A’.(C⊕D)' + A.C.D’ + B’.A.C’

    Have I made any errors and does this look like the most effective way of drawing this circuit using 'standard' logic gates?

    Thanks :)

    Attached Files:

  2. jcsd
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