Sample Paper (Revision) Question 1 (a) Construct a truth table for each of these compound propositions: (1) (ii) ( P Q ) A(-P-0) (Pe> 0) (0-P) (b) Use truth tables to show that the following are logically equivalent: (1) (ii) P -( Q R ) and P (PV-0) Rand ( P (-Q v R) R) A ( QR ) (C) Decide whether each of the following compound propositions are tautologies, contradictions, or contingencies. You may use truth tables. (i) (ii) (( P Q )^ 0) PA (PA-Q)