Question: Let A and B be n n is matrices. Show that (a) If is a noniem eigenvalue of AB. then i is also

Let A and B be n × n is matrices. Show that
(a) If λ is a noniem eigenvalue of AB. then i is also an eigenvalue of BA.
(b) If A = 0 is an eigenvalue of Ab, then λ = 0 is also an eigenvalue of BA.

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