Given a $4 \times 4$ matrix with two eigenvalues equal to zero, how can one find the largest eigenvalue?
I know how to find the eigenvalues using the regular way, but this fact should save a lot of work.
Given a $4 \times 4$ matrix with two eigenvalues equal to zero, how can one find the largest eigenvalue?
I know how to find the eigenvalues using the regular way, but this fact should save a lot of work.
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