Represent each circuit with a symbolic statement. Using a truth table, state whether the circuits are equivalent.
A. (p ? q) ? ~p; [p ? (~p ? q)] ? ~p; not equivalent
B. (p ? q) ? ~p; [p ? (~p ? q)] ? ~p; not equivalent
C. (p ? q) ? ~p; [p ? (~p ? q)] ? ~p; equivalent
D. (p ? q) ? ~p; [p ? (~p ? q)] ? ~p; equivalent
Answer: D
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