Let A be 2x2 and let be the characteristic polynomial of A. Show that and .
I know with a 2x2 matrix that forms the characteristic polynomial; however, I am not sure on how to prove it. I am guessing it is probably trivial if I know that.
Let A be 2x2 and let be the characteristic polynomial of A. Show that and .
I know with a 2x2 matrix that forms the characteristic polynomial; however, I am not sure on how to prove it. I am guessing it is probably trivial if I know that.
Take a look
Computation of Eigenvalues