If A=[31−12] and I=[1001], find k so that A2=5A+kI. – InterviewSolution

1.	If A=[31−12] and I=[1001], find k so that A2=5A+kI.
Answer» If $A = [\begin{matrix} 3 & 1 - 1 & 2 \end{matrix}]$ and $I = [\begin{matrix} 1 & 0 0 & 1 \end{matrix}]$ , find k so that $A^{2} = 5 A + k I$ .

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