Mathematics · 2021
JEE Main · 18 March 2021, Shift 2 · Q62
If P and Q are two statements, then which of the following compound statement is a tautology?
If P and Q are two statements, then which of the following compound statement is a tautology ?
Official answer
(3)
$\displaystyle ((P \Rightarrow Q) \wedge \sim Q) \Rightarrow \sim P$
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JEE Main 2021 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.