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If Matrix A= [[5,3],[-1,-2]], then show ...

If Matrix `A= [[5,3],[-1,-2]]`, then show that `A^2-3A-7I=0` and hence find `A^-1` from this equation.

Text Solution

Verified by Experts

The correct Answer is:
`A^(-1)=[{:(2,3),(-1,-5):}]`
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