The Sum of Products expansion for the function F(x, y, z) = (x + y)z̅ is given…

2013

The Sum of Products expansion for the function F(x, y, z) = (x + y)z̅ is given as

  1. A.

    x’y’z + xyz̅ + x’yz̅

  2. B.

    xyz + xyz̅ + xy’z̅

  3. C.

    xy’z̅ + x’y’z̅ + xyz̅

  4. D.

    xyz̅ + xy’z̅ + x’yz̅

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Correct answer: D

First, distribute z̅ to obtain xz̅ + yz̅. Then expand each term into canonical minterms by including missing variables. xz̅ becomes xy z̅ + xy' z̅, while yz̅ becomes xyz̅ + x'y z̅. The final Sum of Products expansion is xyz̅ + xy'z̅ + x'y z̅.

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