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  1. To realize following function 'f',

    How many minimum number of 2 input NAND gates are required?

    2. A.
    3
    B.
    6
    C.
    4
    D.
    10

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    Answer : Option D

    Explanation :

    f1 = A B D + A B C + A B D + A B D = A D + A D = A ⊕ D

    f = C D(A D + A D) + C D(A D + A D + C D A + C D A

    Min number of 2 input NAND gate = 10.

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