jee-main 2021 Q68

jee-main · India · session2_16mar_shift1 Not Maths

Which of the following Boolean expression is a tautology?
(1) $( p \wedge q ) \vee ( p \vee q )$
(2) $( p \wedge q ) \vee ( p \rightarrow q )$
(3) $( p \wedge q ) \wedge ( p \rightarrow q )$
(4) $( p \wedge q ) \rightarrow ( p \rightarrow q )$

Which of the following Boolean expression is a tautology?\\
(1) $( p \wedge q ) \vee ( p \vee q )$\\
(2) $( p \wedge q ) \vee ( p \rightarrow q )$\\
(3) $( p \wedge q ) \wedge ( p \rightarrow q )$\\
(4) $( p \wedge q ) \rightarrow ( p \rightarrow q )$

Paper Questions

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