1.4.37 Matrix Transformations

Condition: for a given matrix \ (a \) find \ (a^{-1} \) and check the equality \ (a a^{-1} = a^{-1} a = e \). \ [\ left (\ begin {Array} {cccc} -1 & 6 & 0 & [9 & 5 & 8 & 1 & 1 & 5 \ End {Array} \ Right) \]