Ononot — Given the coupled system un = 2u{n-1} - v{n-1} and vn = u{n-

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Recurrence Relationseasy

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Given the coupled system $u_n = 2u_{n-1} - v_{n-1}$ and $v_n = u_{n-1}$ with initial conditions $u_0 = 3$ and $v_0 = 1$ , find $u_2$ .