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Use propositional equivalences to find following negations: a) (pr) b) (pr) c) (pr) d) (p(qr)) 2. Use the following truth table to decide whether the

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Use propositional equivalences to find following negations: a) (pr) b) (pr) c) (pr) d) (p(qr)) 2. Use the following truth table to decide whether the following logical expressions p(qr)andq(pr) are logically equivalent. Your answer: 3. Use logical equivalences to decide whether the compound proposition (q(pq))p is a tautology. 4. Use the truth table to decide whether (pq)r and (pr)(qr) are logically equivalent. 5. TRUTH or FALSE? a) [(pq)s][pqs] TRUTH PALSE b) [(pq)s][(pq)s] TRUTH FALSE c) [(pq)s][s(pq)] TRUTH PALSE d) [s(pq)][sqp] TRUTH FALSE

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