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If `A^(3)=O`, then prove that `(I-A)^(-1) =I+A+A^(2)`.A. `I-A`B. `(I-A)^(-1)`C. `(I+A)^(-1)`D. none of these |
Answer» Correct Answer - B We have, `(I-A)(I+A+A^2)=I+A+A^2-A-A^2-A^3=I-O=I` `:. (I-A)^(-1)=I+A+A^2` |
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