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Let A=[2 3-1 2] and f(x)=x^2-4x+7 . Show...

Let `A=[2 3-1 2]` and `f(x)=x^2-4x+7` . Show that `f(A)=O` . Use this result to find `A^5` .

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The correct Answer is:
`[(-118,-93),(31,-118)]`
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