If A=[{:(,3,1),(,-1,2):}] and I=[{:(,1,0),(,0,1):}],find A^2-5A+7I. – InterviewSolution

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1.	If A=[{:(,3,1),(,-1,2):}] and I=[{:(,1,0),(,0,1):}],find A^2-5A+7I.
Answer» ANSWER :`[{:(,0,0),(,0,0):}]`

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