![A=\left[\begin{array}{rr}1 & -1 \\ 2 & -1\end{array}\right], B=\left[\begin{array}{rr}a & -1 \\ b & -1\end{array}\right]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-7966787aabbac62e99a047018387f869_l3.png "Rendered by QuickLaTeX.com")
and 
then find the values of 
and 
.Solution:
We have 
and 
We need to find matrix 
.
We’ll use the inverse application here by modification of the equation we have as 
(i) The of 
is computed as follow:
We have 
(ii)We can have 
as
(iii)We can have 
as
(iv) We can have 
as
(v)We can have 
as
(vi) We are given equation as 
Thus we have the relations as follow:
Therefore on solving the equations we obtain
