Is there any closed formula for the series
$$\sum_{k=1}^{\infty}\frac{\sin (kx)}{k}$$
or for the sum
$$\sum_{k=1}^{n}\frac{\sin (kx)}{k}$$
where $x$ is an real number. Thank you.
2026-03-25 03:19:21.1774408761
Finding closed forms for a trigonometric series or for the partial sums
69 Views Asked by Bumbble Comm https://math.techqa.club/user/bumbble-comm/detail AtRelated Questions in CLOSED-FORM
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