Ononot — For the recurrence an = 7a{n-1} - 12a{n-2}, the characterist

Recurrence Relationshard

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For the recurrence $a_n = 7a_{n-1} - 12a_{n-2}$ , the characteristic equation is $r^2 - 7r + 12 = 0$ . By Vieta's formulas, if $r_1$ and $r_2$ are the roots, which is correct?