Contoh Soal
Diberikan beberapa matriks berikut.
[% {\rm{P}} = \left( {\begin{array}{*{20}{l}}2&3\\5&7\end{array}} \right) %]
[% {\rm{Q}} = \left( {\begin{array}{*{20}{l}} - 2& - 3\\ - 5& - 7\end{array}} \right) %]
[% {\rm{R}} = \left( {\begin{array}{*{20}{l}}7& - 3\\ - 5&2\end{array}} \right) %]
[% {\rm{S}} = \left( {\begin{array}{*{20}{l}} - 2&3\\5& - 7\end{array}} \right) %]
Pasangan matriks yang saling invers adalah ....
