Mathematical Reasoning
normal

વિધાન  $ \sim \left( {p \leftrightarrow  \sim q} \right)$ 

A

 $p \leftrightarrow q$ ને સમાન છે 

B

 $ \sim p \leftrightarrow q$ ને સમાન છે 

C

એ હમેશા સત્ય છે 

D

હમેશા અસત્ય છે 

Solution

$p$ $q$ $ \sim p$ $ \sim q$ $p \leftrightarrow  \sim q$ $ \sim \left[ {p \leftrightarrow  \sim q} \right]$ $ \sim \left\{ {p \leftrightarrow q} \right\}$ ${p \leftrightarrow q}$
$T$ $T$ $F$ $F$ $F$ $T$ $F$ $T$
$T$ $F$ $F$ $T$ $T$ $F$ $T$ $F$
$F$ $T$ $T$ $F$ $T$ $F$ $T$ $F$
$F$ $F$ $T$ $T$ $F$ $T$ $F$ $T$

Clerly $ \sim \left( {p \leftrightarrow  \sim q} \right)$ is equivalent to ${p \leftrightarrow q}$

Standard 11
Mathematics

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