Chapter 6.2, Problem 11E

In Exercises $9-14$, calculate the cofactors $A_{11}$, $A_{12}$, $A_{13}$, and $A_{33}$ for the given matrix $A$.

$A=\left[\begin{array}{ccc}2& -1& 3\\ -1& 2& 2\\ 3& 2& 1\end{array}\right]$