A ∈ Rnn which of the following is true?   a) If A is regular, the inverse of A can be found with the Cayley-Hamilton theorem. b) < , > is an inner product in Rn1 and u, v ∈ Rn1 and = . c) Rn1 is the direct sum of the eigenspaces obtained versus the eigenvalues ​​of A. d) The characteristic polynomial of A divides the minimal polynomial. e) If L linear transformation has inverse and its matrix is ​​A, then L-1 linear transformation has matrix A as well.

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