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Mathematical Reasoning
medium
The number of choices of $\Delta \in\{\wedge, \vee, \Rightarrow, \Leftrightarrow\}$, such that $( p \Delta q ) \Rightarrow(( p \Delta \sim q ) \vee((\sim p ) \Delta q ))$ is a tautology, is
A
$1$
B
$2$
C
$3$
D
$4$
(JEE MAIN-2022)
Solution
For tautology $(( p \Delta \sim q ) \vee((\sim p ) \Delta q ))$ must be true.
This is possible only when $\Delta=\vee \ and \Rightarrow$
Standard 11
Mathematics
