Mathematics · 2019
JEE Main · 10 April 2019, Shift 1 · Q90
Which one of the following Boolean expressions is a tautology?
Which one of the following Boolean expressions is a tautology ?
Official answer
(4)
$\displaystyle (p \vee q) \vee(p \vee \sim q)$
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JEE Main 2019 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.