A. M. Zaezdnyĭ
![Tablit︠s︡y i formuly summ trigonometricheskikh ri︠a︡div vidov [Sigma] [n to infinity] In̳(r)/(n²a² cos (nx) i [Sigma] [n=1 to infinity] nIn̳(r)/(n²a² sin (nx)](https://s3.amazonaws.com/readfeedstatic/book_covers/thumbnails/rf-placeholder.png)
Tablit︠s︡y i formuly summ trigonometricheskikh ri︠a︡div vidov [Sigma] [n to infinity] In̳(r)/(n²a² cos (nx) i [Sigma] [n=1 to infinity] nIn̳(r)/(n²a² sin (nx)- Tablit︠s︡y i formuly summ trigonometricheskikh ri︠a︡div vidov [Sigma] [n to infinity] Jn̳(r)/(n²a² cos [or] sin (nx) i [Sigma] [n=1 to infinity] nJn̳(r)/(n²a² cos [or] sin (nx)