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X = (\begin{matrix} 2 & - 1 \\ 3 & - 1 \end{matrix})

X^{- 1} = ?

(\begin{matrix} - 2 & - 1 \\ 3 & 1 \end{matrix})

\frac{1}{5} (\begin{matrix} - 1 & 1 \\ - 3 & 2 \end{matrix})

(\begin{matrix} 2 & 3 \\ - 1 & - 1 \end{matrix})

(\begin{matrix} - 1 & 1 \\ - 3 & 2 \end{matrix})

অসংজ্ঞায়িত

ANS : 4

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