I wonder is there formula for this function.
$$f(n)=\sum_{k=2}^{n}\frac{1}{\sin^{2}(\frac{\pi }{k})}$$
2026-04-13 05:05:25.1776056725
Is there a formula for $f(n)=\sum_{k=2}^{n}\frac{1}{\sin^{2}(\frac{\pi }{k})}$
76 Views Asked by Bumbble Comm https://math.techqa.club/user/bumbble-comm/detail AtRelated Questions in TRIGONOMETRY
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