Odpowiedź:
[tex]A=\left[\begin{array}{ccc}2&4&1\\-1&2&4\\\end{array}\right][/tex]
[tex]A^T=\left[\begin{array}{ccc}2&-1\\4&2\\1&4\end{array}\right][/tex]
[tex]B=\left[\begin{array}{ccc}2&4\\-1&2\\\end{array}\right][/tex]
[tex]A^TB=\left[\begin{array}{ccc}2&-1\\4&2\\1&4\end{array}\right] \left[\begin{array}{ccc}2&4\\-1&2\\\end{array}\right] =\left[\begin{array}{ccc}5&6\\6&20\\-2&12\end{array}\right][/tex]
