JEE Main 2021 — Mathematical Reasoning Question with Solution
From: JEE Main 2021 (Online) 27th August Morning Shift
Question
The statement (p (p q) (q r)) r is :
Choose an option
Show full solutionCorrect option: A
Correct answer
Aa tautology
Step-by-step explanation
(p (p q) (q r)) r
(p ( p q) ( q r)) r
((p q) ( p r)) r
(p q r) r
(p q r) r
( p) ( q) ( r) r
tautology
(p ( p q) ( q r)) r
((p q) ( p r)) r
(p q r) r
(p q r) r
( p) ( q) ( r) r
tautology
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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.