The recurrence an=3an−1−2an−2a_n = 3a_{n-1} - 2a_{n-2}an=3an−1−2an−2 is expressed as (anan−1)=(mn10)(an−1an−2)\begin{pmatrix} a_n \\ a_{n-1} \end{pmatrix} = \begin{pmatrix} m & n \\ 1 & 0 \end{pmatrix} \begin{pmatrix} a_{n-1} \\ a_{n-2} \end{pmatrix}(anan−1)=(m1n0)(an−1an−2) What is m+nm + nm+n?
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