यदि \( \mathrm{A}=\left[\begin{array}{cc}2 & 3 \\ 1 & -4\end{array}\right] \) और \( \mathrm{B}=\...

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यदि \( \mathrm{A}=\left[\begin{array}{cc}2 & 3 \\ 1 & -4\end{array}\right] \) और \( \mathrm{B}=\left[\begin{array}{cc}1 & -2 \\ -1 & 3\end{array}\right] \), तो सत्यापित कीजिए कि \( (\mathrm{AB})^{-1}= \)
\[
\mathrm{B}^{-1} \mathrm{~A}^{-1} \text { है। }
\]
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