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A=[{:(1,3),(2,1):}] satisfy the equation...

`A=[{:(1,3),(2,1):}]` satisfy the equation `A^2-kA-5I=0`, then find k and also `A^(-1)`.

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To solve the problem, we need to find the value of \( k \) and the inverse of the matrix \( A \) given by: \[ A = \begin{pmatrix} 1 & 3 \\ 2 & 1 \end{pmatrix} \] and the equation: ...
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