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  1. The following circuit is implementation of

    1. Sum of full adder
    2. Carry of half adder
    3. Difference of full subtractor

  2. A.
    (i) only
    B.
    (iii) only
    C.
    (ii) only
    D.
    (i) and (ii)

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    Answer : Option D

    Explanation :

    Now it is evident from the truth tables that sum and differennce are same.


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