JEE Main 2021 — Mathematical Reasoning Question with Solution
From: JEE Main 2021 (Online) 24th February Morning Shift
Question
The statement among the following that is a tautology is :
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
Given,
=
=
=
=
= t
Hence, is a tautology.
=
=
=
=
= t
Hence, is a 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.