Homepage › Solution manuals › Stephen Friedberg › Linear Algebra › Exercise 5.1.26

Exercise 5.1.26

Answers

By Exercise 5.1.20 and Exercise 5.1.21(b) and Theorem 5.3(b), we know that the characteristic polynomial must be

t^{2} - tr (A) t + \det (A) .

And the coefficient could be $0$ or $1$ . So there are $4$ possible characteristic polynomials. By checking that all of them are achievable, we get the answer are $4$ .

jephianlin

2011-06-27 00:00

Exercise 5.1.26

Answers

Comments

Add answer