$A=\left[\begin{array}{ll}4 & 5 \\7 & 9\end{array}\right]$ হলে $\mathbf{A}^{-1}$ হবে-

$\left[\begin{array}{cc}-4 & 7 \\5 & -9\end{array}\right]$

$\left[\begin{array}{cc}9 & -5 \\-7 & 4\end{array}\right]$

$\left[\begin{array}{cc}9 & 7 \\5 & -4\end{array}\right]$

$\left[\begin{array}{cc}4 & -7 \\-5 & 9\end{array}\right]$