$A=\left[\begin{array}{cc}a & b \\c & -\mathrm{d}\end{array}\right]$ -এর অনুবন্ধী $\text { (Adjoint) }$ ম্যাট্রিক্স কোনটি?

$\left[\begin{array}{cc}\mathrm{d} & -\mathrm{c} \\-\mathrm{b} & -\mathrm{a}\end{array}\right]$

$\left[\begin{array}{ll}\mathrm{d} & \mathrm{c} \\\mathrm{b} & \mathrm{a}\end{array}\right]$

$\left[\begin{array}{cc}-\mathrm{d} & -\mathrm{b} \\-\mathrm{c} & \mathrm{a}\end{array}\right]$

$\left[\begin{array}{cc}-d & b \\c & a\end{array}\right]$