1. Show that this expression is a total differential of the function u (x, y). Find u (x, y) function
1.22. (X-y / (x2-y2) dx + (x / (x2-y2) -y) dy
2. Solve the following tasks:
2.22. Calculate the work of the force F = xyi + (x + y) j when moving material point in a straight line y = x from the point (0, 0) to the point (1, 1).
Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)
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