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[" Suppose a matrix "A" satisfies "A^(2)...

[" Suppose a matrix "A" satisfies "A^(2)-5A+7I=0." If "A^(5)=aA+bI" ,then the value of "3a+b" must "],[" be "],[[" A) "60," B) "62," C) "64," D) "66]]

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