A) \[\tilde{\ }p\]
B) \[p\]
C) \[q\]
D) \[-q\]
Correct Answer: A
Solution :
\[\tilde{\ }(p\vee q)\vee (\tilde{\ }p\wedge q)\] \[\cong (\tilde{\ }p\wedge \tilde{\ }q)\vee (\tilde{\ }p\wedge q)\] \[\cong \tilde{\ }p\wedge (\tilde{\ }q\vee q)\cong \tilde{\ }p\vee t\cong \tilde{\ }p\]
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