Chapter 4.2, Problem 1E

In Exercises 1-6, list the minor matrix $M_{ij}$, and calculate the cofactor $A_{ij}={(-1)}^{i+j}\det (M_{ij})$ for the matrix A given by

$A=\left[\begin{array}{cccc}2& -1& 3& 1\\ 4& 1& 3& -1\\ 6& 2& 4& 1\\ 2& 2& 0& -2\end{array}\right]$

$M_{11}$