Logic diagram ,,help

  1. hi ^^

    Draw the logic diagram of the following expression. The diagram should correspond directly to the equation. Assume that the complements of the inputs are not available:
    a . XYZ + X’Y’ + X’Z’.
    b . B(A’C’+AC) + D’(A+B’C)

    what does it mean ?
    do i have to draw the inverter? or not?
    should i use the sum of products form?
  2. jcsd
  3. In item a you don't need to use inverters. Use De Morgan's law and implement X'Y' and X'Z' using nor gates instead of nand gates.
    In item b you should use inverters.
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