MCQ
If $A=\left[\begin{array}{ll}2 & 3 \\ 1 & 2\end{array}\right], B=\left[\begin{array}{ll}1 & 0 \\ 3 & 1\end{array}\right]$, then $B^{-1} A^{-1}=$ ?
  • $\left[\begin{array}{cc}2 & -3 \\ -7 & 11\end{array}\right]$
  • B
    $\left[\begin{array}{cc}-2 & -3 \\ -7 & 11\end{array}\right]$
  • C
    $\left[\begin{array}{cc}2 & 3 \\ 7 & 11\end{array}\right]$
  • D
    $\left[\begin{array}{cc}-2 & -3 \\ -7 & -11\end{array}\right]$

Answer

Correct option: A.
$\left[\begin{array}{cc}2 & -3 \\ -7 & 11\end{array}\right]$
A

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