Let A=(1234)A = \begin{pmatrix} 1 & 2 \\ 3 & 4 \end{pmatrix}A=(1324). Using the Cayley-Hamilton theorem, which equation does AAA satisfy?
A2−5A−2I=0A^2 - 5A - 2I = 0A2−5A−2I=0
A2+5A−2I=0A^2 + 5A - 2I = 0A2+5A−2I=0
A2−5A+2I=0A^2 - 5A + 2I = 0A2−5A+2I=0
A2+5A+2I=0A^2 + 5A + 2I = 0A2+5A+2I=0