ИДЗ 14.2 – Вариант 16. Решения Рябушко А.П.

1. Show that this expression is a total differential of the function u (x, y). Find u (x, y) function
1.16. (Y - sinx) dx + (x - 2ycosy2) dy

2. Solve the following tasks:
2.16. Calculate the moment of inertia about the axis Oz smooth arc of the first round of the helix x = 2cost, y = 2sint, z = t.

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