Authors
Volodymyr Brayman, Alexander Kukush
Publication date
2017/6/27
Book
Undergraduate Mathematics Competitions (1995–2016) Taras Shevchenko National University of Kyiv
Pages
189-198
Publisher
Springer International Publishing
Description
Notice that , , i.e., the matrix is skew-symmetric, Therefore, $$\begin{aligned} \det \,A=\det \, A^\text {T}=\det (-A)=(-1)^{2013}\det \,A=-\det \, A, \end{aligned}$$whence .
Scholar articles
V Brayman, A Kukush - … Competitions (1995–2016) Taras Shevchenko National …, 2017