Question

If you know the answer then only answer it if not then please don't​.​

Answer 1

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FORMULA TO BE IMPLEMENTED

For two non singular matrices

$AB = I \: \: implies \: \: {A}^{ - 1} = B$

Where

${A}^{ - 1} \: \: is \: the \: \: inverse \: \: of \: {A}$

CALCULATION

By the above mentioned formula

${A}^{ - 1} = B = \displaystyle\begin{pmatrix} 5 & - 3\\ - 3 & \: \: \: 2 \end{pmatrix}$