If ( left [ begin matrix a & b a_ 1 & b_ 1 end matrix right ] left [ begin matrix 3 & - 5 - 1 & 2 end matrix right ] = left [ begin matrix 1 & - 1 2 & 0 end matrix right ] , ) then

\left [ \begin{matrix} a & b \\ a_{1} & b_{1} \end{matrix} \right ] \left [ \begin{matrix} 3 & - 5 \\ - 1 & 2 \end{matrix} \right ] = \left [ \begin{matrix} 1 & - 1 \\ 2 & 0 \end{matrix} \right ] ,

IUT 22-23IUT 17-18

\left [ \begin{matrix} a & b \\ a_{1} & b_{1} \end{matrix} \right ] \left [ \begin{matrix} 3 & - 5 \\ - 1 & 2 \end{matrix} \right ] = \left [ \begin{matrix} 1 & - 1 \\ 2 & 0 \end{matrix} \right ] ,

IUT 22-23IUT 17-18

If ( left [ begin matrix a & b a_ 1 & b_ 1 end matrix right ] left [ begin matrix 3 & - 5 - 1 & 2 end matrix right ] = left [ begin matrix 1 & - 1 2 & 0 end matrix right ] , ) then the values of a and b are ?