$\mathrm{A}^{-1}$ নির্ণয় কর: $A=\left[\begin{array}{cc}1 & 4 \\2 & -6\end{array}\right]$

$\frac{1}{14}\left[\begin{array}{cc}6 & 4 \\-2 & 1\end{array}\right]$

$\frac{1}{14}\left[\begin{array}{cc}-6 & -4 \\2 & 1\end{array}\right]$

$\frac{1}{14}\left[\begin{array}{cc}6 & 4 \\-2 & -1\end{array}\right]$

$\frac{1}{-14}\left[\begin{array}{cc}-6 & -4 \\2 & 1\end{array}\right]$

$\text { None }$