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[" Q3If "A=[[5,3],[12,7]]" verify "A^(2)...

[" Q3If "A=[[5,3],[12,7]]" verify "A^(2)-12A-I=0]

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If the matrix A=[[5,3],[12,7]] , then verify that A^2-12-I=O where I is a unit matrix.

If A=[(5,3),(12,7)] , show that A^(2)-12A-I=0 . Hence find A^(-1) .

If A= [[3,1],[-1,2]] ,find A^2-5A+7I

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Show that the matrix A=[(5, 3), (12 ,7)] then show A^2-12 A-I=O .