A ready solution to the problem. The sorcerer of Arutyunov. Task number 391.

391 - 400. Compute the given curvilinear integrals.

391. Compute the curvilinear integral
 
Along the arc L of the circle x = 5cost, y = 5sint, bypassing it against the clockwise direction from point A (5; 0) to point B (0; 5). Draw a drawing.

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Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)