Page 1 of 1
(1) Let us consider the 2 x 2 matrix A = (1 2₂¹) G (a) Find eigenvalues of A, show that it is not diagonalizable without
Posted: Tue Jul 12, 2022 12:08 pm
by answerhappygod
- 1 Let Us Consider The 2 X 2 Matrix A 1 2 G A Find Eigenvalues Of A Show That It Is Not Diagonalizable Without 1 (52.9 KiB) Viewed 25 times
(1) Let us consider the 2 x 2 matrix A = (1 2₂¹) G (a) Find eigenvalues of A, show that it is not diagonalizable without computing eigenvectors explicitly. (b) Suppose that v2 = (1,0) and set v₁ = (A-AI) v2 where A is the eigenvalue find in previous problem. Show that A =P ( ₁₂ √) P²² with first column of P is v₁ and second column of P is U2, so we can conjugate A to its Jordan block of size 2. (c) From here show that A2 - 2A + I = O where I is an identity matrix and O is the zero matrix so A satisfies its own characteristic equation.