Evaluate Piecewise Sequence — task. Maths CBSE Live product, Class 9 (2026-27).

Find \(a_{16}\) and \(a_{21}\) 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}\}

\(a_{16}\) \(=\)

\frac{i}{i}

\(a_{21}\) \(=\)

\frac{i}{i}

Did you find an error?

3. Evaluate Piecewise Sequence