JEE Main 2022 Mathematics question
Not in JEE syllabus
Let r {p, q, ~p, ~q} be such that the logical statement r (~p) q) r is a tautology. Then r is equal to :
Answer: (3)
Solution
With r = ~p: the antecedent is ~p ~p = ~p, and the consequent is (p q) ~p = (p
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