Mathematical Reasoning
hard

कथन

$((\mathrm{A} \wedge(\mathrm{B} \vee \mathrm{C})) \Rightarrow(\mathrm{A} \vee \mathrm{B})) \Rightarrow \mathrm{A}$ का निषेधन 

A

$\sim \mathrm{A}$ के तुल्य है

B

$\sim \mathrm{C}$ के तुल्य है

C

$\mathrm{B} \vee \sim \mathrm{C}$ के तुल्य है

D

हेत्वाभास (fallacy) है

(JEE MAIN-2023)

Solution

$p :(( A \wedge( B \vee C )) \Rightarrow( A \vee B )) \Rightarrow A$

${[\sim( A \wedge( B \vee C )) \vee( A \vee B )] \Rightarrow A }$

${[( A \wedge( B \vee C )) \wedge \sim( A \vee B )] \vee A }$

$( f \vee A )= A$

$\sim p \equiv \sim A$

Standard 11
Mathematics

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