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Discussion :: Digital Electronics

  1. Two 2's complement number having sign bits X and Y are added and the sign bit of the result is Z. then, the occurrence of overflow is indicated by the Boolean function.

    2. A.
    XYZ
    B.
    X Y Z
    C.
    X YZ + XY Z
    D.
    XY + YZ + ZX

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    Answer : Option D

    Explanation :

    carry of a one bit full order is given by expression XY + YZ + ZX.

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