Q31

MCQ2 marks, −0.5

$P$ and $Q$ are two propositions. Which of the following logical expressions are equivalent? Only I and II Only I, II and III Only I, II and IV All of I, II, III and IV

(A)

$P ∨ \neg Q$

(B)

$\neg(\neg P ∧ Q)$

(C)

$(P ∧ Q) ∨ (P ∧ \neg Q) ∨ (\neg P ∧ \neg Q)$

(D)

$(P ∧ Q) ∨ (P ∧ \neg Q) ∨ (\neg P ∧ Q)$

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