Solve this following

Question:

Find the adjoint of the given matrix and verify in each case that $A .(\operatorname{adj} A)=(\operatorname{adj} A)=m|A| . I$

$\left[\begin{array}{ccc}9 & 7 & 3 \\ 5 & -1 & 4 \\ 6 & 8 & 2\end{array}\right]$

Solution:

 

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