Let A be a complex matrix with minimal polynomial x^2*(x 1)^2 . (i) Let h(z) =
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Let A be a complex matrix with minimal polynomial x^2*(x − 1)^2 .
(i) Let h(z) = z^n , n ≥ 4. Find a degree 3 real polynomial f(z) such that f(1) = h(1), f' (1) = h'(1), f(0) = h(0), f'(0) = h'(0).
(ii) Derive a formula for the power A^n in the form A^n = αnI + βnA + γnA^2 + δnA^3 for some real numbers αn, βn, γn and δn.
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