If $$A = \left( {\matrix{ 2 & 2 \cr 9 & 4 \cr } } \right)$ and $I = \left( {\matrix{ 1 & 0 \cr 0 & 1 \cr } } \right)$$ then 10A–1 is equal to :

Question

If $$A = \left( {\matrix{ 2 & 2 \cr 9 & 4 \cr } } \right)$ and $I = \left( {\matrix{ 1 & 0 \cr 0 & 1 \cr } } \right)$$ then 10A^–1 is equal to :

6I – A