[Steps Shown] (a) Suppose that A, B and C are n * n matrices and that C is nonsingular. Prove that B=C^-1 A C implies that A and B have the same eigenvalues
Question: (a) Suppose that A, B and \(C\) are \(n \times n\) matrices and that \(C\) is nonsingular. Prove that \(B=C^{-1} A C\) implies that \(A\) and \(B\) have the same eigenvalues but not vice versa.
(b) Given that \(A\) is an \(n \times n\) matrix that satisfies \(A^{2}=A\), determine its eigenvalues.
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