DHS 14.2 - Option 3. Decisions Ryabushko AP

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1. Show that this expression is a total differential of the function u (x, y). Find u (x, y) function
1.3. - (1 / 2cos2y + ysin2x) dx + (xsin2y + cos2x + 1) dy

2. Solve the following tasks:
2.3. Find the coordinates of the center of mass homogenous quarter circle x2 + y2 = a2, lying in the first quadrant.

Detailed solution. Designed in PDF format for easy viewing of IDZ solutions on smartphones and PCs. In MS Word (doc format) sent additionally.

01.12.2017 19:59:12

нашел недочёты ,но в целом неплохо