JEE Main 2020 — Mathematical Reasoning Question with Solution
JEE Main 2020 (02 Sep Shift 2)
Question
Which of the following is a tautology?
Choose an option
Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
(where is contradiction)
and
| T | T | T | T | F | T | T |
| T | F | F | T | T | F | T |
| F | T | T | F | F | F | F |
| F | F | T | T | T | T | T |
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This is a previous-year question from JEE Main 2020, 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.