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$C = [\begin{matrix} - 1 & 2 \\ 3 & - 4 \end{matrix}]$ হলে $C^{- 1}$ =কত?

- \frac{1}{2} [\begin{matrix} - 4 & 3 \\ 2 & - 1 \end{matrix}]

\frac{- 1}{2} [\begin{matrix} 4 & - 2 \\ - 3 & 1 \end{matrix}]

\frac{1}{2} [\begin{matrix} 4 & 2 \\ 3 & 1 \end{matrix}]

\frac{1}{2} [\begin{matrix} 4 & 3 \\ 2 & 1 \end{matrix}]

ANS : 3

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