Given an=5an−1−6an−2a_n = 5a_{n-1} - 6a_{n-2}an=5an−1−6an−2, express (anan−1)\begin{pmatrix} a_{n} \\ a_{n-1} \end{pmatrix}(anan−1) as Mn(a0a−1)M^n \begin{pmatrix} a_0 \\ a_{-1} \end{pmatrix}Mn(a0a−1). What is the trace of matrix MMM?
555
666
−5-5−5
111