ИДЗ 14.2 – Вариант 26. Решения Рябушко А.П.

1. Show that this expression is a total differential of the function u (x, y). Find u (x, y) function
1.26. (2xex2-y2-sinx) dx + (siny-2yex2-y2) dy

2. Solve the following tasks:
2.26. Calculate the arc length of one cycloid arches x = 3 (t - sint), y = 3 (1 - cost).

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