(Recommended) This matrix M is skew-symmetric and also Then all its eigenvalues are pure
Chapter 6, Problem 14(choose chapter or problem)
(Recommended) This matrix M is skew-symmetric and also Then all its eigenvalues are pure imaginary and they also have I A I = 1. (II M x II = II x II for every x so IIAx II = IIx II for eigenvectors.) Find all four eigenvalues from the trace of M: 0 1 1 1 M=- 1 -1 0 -1 1 -1 1 0 -1 can only have eigenvalues i or - i.
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