JEE Main 2021 (26 Feb, Shift 2) Maths Q72: Let and be two…

Question

Let $F_1(A, B, C) = (A \wedge \sim B) \vee [\sim C \wedge (A \vee B)] \vee \sim A$ and $F_2(A, B) = (A \vee B) \vee (B 	o \sim A)$ be two logical expressions. Then :

Accepted Answer

Option 3: $F_1$ is not a tautology but $F_2$ is a tautology

Answer

$F_1$ and $F_2$ both are tautologies

Answer

$F_1$ is a tautology but $F_2$ is not a tautology

Answer

$F_1$ is not a tautology but $F_2$ is a tautology

Answer

Both $F_1$ and $F_2$ are not tautologies

JEE Main 26 February 2021, Shift 2, Maths Q72