1.

If `A^5=O` such that `A^n != I` for `1

Answer» Correct Answer - D
We have,
`A^4(I-A)=A^4-A^5=A^4-O=A^4 ne I`
`A^3(l-A)=A^3-A^4 ne I`
`and , (I+A)(I-A)=I-A^2 ne I`
Hence, `(I-A)^(-1)ne A^4,A^3,I+A`.


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