For the matrix A in Exercise 33, use the CayleyHamilton Theorem to compute A-1 and A-2 by

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For the matrix A in Exercise 33, use the CayleyHamilton Theorem to compute A-1 and A-2 by expressing each as a linear combination of I and A.
In exercise 33
An important theorem in advanced linear algebra says that if cA (λ) is the characteristic polynomial of the matrix A, then cA (A) = 0 (in words, every matrix satisfies its characteristic equation). This is the celebrated Cayley-Hamilton Theorem, named after Arthur Cayley (1821 - 1895), pictured below, and Sir William Rowan Hamilton. Cayley proved this theorem in 1 858. Hamilton discovered it, independently, in his work on quaternions, a generalization of the complex numbers.
For the matrix A in Exercise 33, use the CayleyHamilton
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