JEE Main 2021 — Mathematical Reasoning Question with Solution
From: JEE Main 2021 (Online) 16th March Morning Shift
Question
Which of the following Boolean expression is a tautology?
Choose an option
Show full solutionCorrect option: C
Correct answer
C(p q) (p q)
Step-by-step explanation
\matrix{
p & q & {p \wedge q} & {p \vee q} & {p \to q} & {(p \wedge q) \to (p \to q)} \cr
T & T & T & T & T & T \cr
F & T & F & T & T & T \cr
T & F & F & T & F & T \cr
F & F & F & F & T & T \cr
}
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This is a previous-year question from JEE Main 2021, covering the Mathematical Reasoning chapter of Mathematics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.