@ -595,7 +595,7 @@ Doing transformations to form row echelon form, we get
\section*{Question 15}
\subsection*{Part i}
Since $A + A^{-1}=0$, $A$ must either be skew symmetric. If A is skew symmetric, we know that the rank of an odd order skew symmetric matrix must be even. $\therefore Rank \leq2020$
Since $A + A^T=0$, $A$ must either be skew symmetric. If A is skew symmetric, we know that the rank of an odd order skew symmetric matrix must be even. $\therefore Rank \leq2020$