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onepound

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I'm currently learning Number Theory.

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Top Questions

What does the !! mean in trigonometric identity?

notation factorial asked Jan 12, 2020 at 17:23

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Is there an identity for $\sum_{k=0}^{n-1}\tan^4\left({k\pi\over n}\right)$?

trigonometry summation contour-integration trigonometric-series summation-method asked Nov 6, 2022 at 20:30

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Is there an identity for $\sum_{k=0}^{n-1}\csc(w+ k \frac{\pi}{n})\csc(x+ k \frac{\pi}{n})\csc(y+ k \frac{\pi}{n})\csc(z+ k \frac{\pi}{n})$?

trigonometry summation contour-integration trigonometric-series summation-method asked Jul 16 at 18:07

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Is there any identity for $\sum_{k=1}^{n}\tan\left(\theta+\frac{k\pi}{\color{red} {2n+1}}\right)$?

calculus sequences-and-series complex-analysis trigonometry summation asked Feb 11, 2022 at 14:19

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bath and sink connected on same pipe - bath gurgling when sink bowl emptied

bathroom drain asked Jul 9, 2018 at 10:47

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Is there an identity for $\sum_{k=0}^{n-1}\csc\left(x+ k \frac{\pi}{n}\right)\csc\left(y+ k \frac{\pi}{n}\right)$?

complex-analysis trigonometry summation trigonometric-series summation-method asked May 8 at 19:56

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Top Answers

How do I change my font size to 18 points globally?

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