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Que. A Boolean operator Ө  is defined as follows:

1Ө1=1, 1Ө0=0, 0Ө1=0 and 0Ө0=1

What will be the truth value of the expression (xӨy)Өz = xӨ(yӨz)?
a. Always false
b. Always true
c. Sometimes true
d. True when x, y, z are all true
Answer:Always true
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