Ononot — For the recurrence an = 4a{n-1} - 5a{n-2} with a0 = 2 and a1

Recurrence Relationsmedium

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For the recurrence $a_n = 4a_{n-1} - 5a_{n-2}$ with $a_0 = 2$ and $a_1 = 6$ , compute the discriminant of the characteristic equation and classify the roots.