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Question 1
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Let $\oplus$ and $\odot$ denote the Exclusive - OR and Exclusive-NOR operations respectively. Which of the following is not correct?
A.
$$\, \overline{P}\oplus\overline{Q}=P\odot Q$$
B.
$$\, \overline{P}\oplus Q=P\odot Q$$
C.
$$\, \overline{P}\oplus\overline{Q}=P\oplus Q$$
D.
$$(P\oplus\overline{P})\oplus Q=(P\odot\overline{P})\overline{Q}$$
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