JEE Main 2021 Mathematics question

Mathematics Mathematical Reasoning JEE Main 2021

Not in JEE syllabus

Let and be two logical expressions. Then :

(A) and both are tautologies
(B) is a tautology but is not a tautologyCorrect
(C) is not tautology but is a tautology
(D)Both and are not tautologies

Answer: (B)

Solution

TOPIC NOT IN SYLLABUS: Mathematical Reasoning

Question ID VK-023868