If A=\begin{bmatrix} 2 & -3 &5 \\ 3 & 2 & -4\\ 1 & 1 & -2 \end{bma | Filo
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Class 12

Math

Algebra

Determinants

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If , find . Using  solve the system of equations


Solution: Given system of equations


This can be written as 
where 

Here,
Since,
Hence, the system of equations is consistent and has a unique solution given by

and










Hence, the co-factor matrix is 






Solution is given by 








Hence,
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