The statement ¬(P∧Q)\neg(P \land Q)¬(P∧Q) is logically equivalent to:
¬P∨¬Q\neg P \lor \neg Q¬P∨¬Q
¬P∧¬Q\neg P \land \neg Q¬P∧¬Q
P∨¬QP \lor \neg QP∨¬Q
¬P∨Q\neg P \lor Q¬P∨Q