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If A= [[1 , 0],[ − 1, 7]] and I=[[1, 0],...

If `A= [[1 , 0],[ − 1, 7]]` and `I=[[1, 0],[ 0 ,1]]` , then find `k` so that `A^2=8A+k I`

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RD SHARMA ENGLISH-ALGEBRA OF MATRICES-All Questions
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