Evaluate Piecewise Sequence — task. Mathematics CBSE, Class 9 New.

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Find \(a_{12}\) and \(a_{39}\) whose \(n^{th}\) term is

a_{n} = \{\begin{array}{l} \frac{n^{2} - 1}{n + 3}; n is even, n \in N \\ \frac{n^{2}}{2 n + 1}; n is odd, n \in N \end{array}\}

\(a_{12}\) \(=\)

\frac{i}{i}

\(a_{39}\) \(=\)

\frac{i}{i}

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9. Evaluate Piecewise Sequence