Explore Westonci.ca, the premier Q&A site that helps you find precise answers to your questions, no matter the topic. Explore in-depth answers to your questions from a knowledgeable community of experts across different fields. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately.

Prove that:-
[tex] \rm \sum_{n = 1}^ \infty \frac{1}{ {n}^{2} + {x}^{2} } = \frac{\pi x - 1 }{2 {x}^{2} } + \frac{\pi}{x( {e}^{2 \pi x} - 1)} \\ [/tex]​