Calculus Examples

$\sum_{n = 0}^{\infty} \frac{{(- 1)}^{n} π^{2 n}}{3^{2 n} (2 n)!}$

Step 1

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$\sum_{n = 0}^{\infty} \frac{{(- 1)}^{n} π^{2 n}}{3^{2 n} (2 n)!}$