Let $A_{ij}$ denote the minors of an $n\times n$ matrix $A.$ What is the relationship between $\mid A_{ij}\mid$ and $\mid A_{ji}\mid$?
- They are always equal.
- $\mid A_{ij}\mid=-\mid A_{ji}\mid$ if $i\neq j.$
- They are equal if $A$ is a symmetric matrix.
- If $\mid A_{ij}\mid=0$ then $\mid A_{ji}\mid=0.$