Mathematics · 2020
JEE Main · 8 January 2020, Shift 1 · Q70
Which one of the following is a tautology?
Which one of the following is a tautology ?
Official answer
(3)
$\displaystyle (P \wedge(P \rightarrow Q)) \rightarrow Q$
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JEE Main 2020 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.