Which of the following Boolean expression is a tautology ?
Which of the following Boolean expression is a tautology ?
- [JEE MAIN 2021]
- A
$(p \wedge q) \vee(p \vee q)$
- B
$(p \wedge q) \vee(p \rightarrow q)$
- C
$(p \wedge q) \wedge(p \rightarrow q)$
- D
$( p \wedge q ) \rightarrow( p \rightarrow q )$
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