$A=\left[\begin{array}{cc}1 & -1 \\0 & 2\end{array}\right]$ হলে $\mathrm{A}^{-1}$ নিচের কোনটি?

$\frac{1}{2}\left[\begin{array}{ll}2 & 1 \\0 & 1\end{array}\right]$

$\frac{1}{2}\left[\begin{array}{cc}-1 & 0 \\1 & -2\end{array}\right]$

$\frac{1}{2}\left[\begin{array}{cc}-1 & 1 \\0 & -2\end{array}\right]$

$\frac{1}{2}\left[\begin{array}{cc}-1 & -1 \\0 & -2\end{array}\right]$