Recurrence Relationshard
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Given the matrix form of a recurrence (anan1)=M(an1an2)\begin{pmatrix} a_n \\ a_{n-1} \end{pmatrix} = M \begin{pmatrix} a_{n-1} \\ a_{n-2} \end{pmatrix}, where an=5an16an2a_n = 5a_{n-1} - 6a_{n-2}, what is matrix MM?