Verify $A(\operatorname{adj} \mathbf{A})=(\operatorname{adj} \mathbf{A}) \mathbf{A}=|\mathbf{A}| \mathbf{I}$ in $\left[\begin{array}{cc}2 & 3 \\ -4 & -6\end{array}\right]$ 3 years ago Let A = adj. A = A.(adj. A) = = = …..(i) Again (adj. A). A = = = …..(ii) And = Again …..(iii) From eq. (i), (ii) and (iii) A. (adj. A) = (adj. A). A =
