Question: Are these compound proposition satisfiable? Prove whether or not they are. (p v ~q) / (~p v q) / (~p v ~q) (p v ~q)

Are these compound proposition satisfiable? Prove whether or not they are.

(p v ~q) /\ (~p v q) /\ (~p v ~q)

(p v ~q) /\ (~p v q) /\ (q v r) /\ (q \/ ~r) /\ (~q v ~r)

(p <-> q) /\ (~p <-> q)

Please answer all 3 of them.

Thank you.

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