solve the recurrence relation either by using the characteristic equation or by discovering a pattern formed by the terms.
-$$a _ { n } = a _ { n - 2 } , \quad a _ { 0 } = 2 , a _ { 1 } = - 1$$

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The Answer of solve the recurrence relation either by using the characteristic equation or by discovering a pattern formed by the terms.
-$$a _ { n } = a _ { n - 2 } , \quad a _ { 0 } = 2 , a _ { 1 } = - 1$$

Solve the Recurrence Relation Either by Using the Characteristic Equation an=an−2,a0=2,a1=−1a _ { n } = a _ { n - 2 } , \quad a _ { 0 } = 2 , a _ { 1 } = - 1an​=an−2​,a0​=2,a1​=−1

Solve the Recurrence Relation Either by Using the Characteristic Equation $a _ { n } = a _ { n - 2 } , \quad a _ { 0 } = 2 , a _ { 1 } = - 1$