The black box in the figure consists of a minimum complexity circuit t – McqOptions

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1.	The black box in the figure consists of a minimum complexity circuit that uses only AND, OR and NOT gates. The function f(x, y, z) = 1 whenever x, y are different and 0 otherwise. In addition the 3 inputs x, y, z are never all the same value. Which one of the following equations leads to the correct design for the minimum complexity circuit?
A.	x' y + xy'
B.	x + y'z
C.	x'y'z' + xy'z
D.	xy + y'z + z'
Answer» B. x + y'z

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