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If A =[[3,1],[-1,2]],show that A^2-5A + ...

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

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V PUBLICATION-DETERMINANT-QUESTION BANK
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  3. If A =[[3,1],[-1,2]],show that A^2-5A + 7I=0 Hence, find A^(-1)

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  4. For the matrix A=[[3,2],[1,1]],find the numbers a and b such that A^2+...

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  5. For the matrix A=[[1,1,1],[1,2,-3],[2,-1,3]] show that A^3-6A^2+5A+11I...

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