Reshebnik Arutyunov Yu N81 Setting Higher Mathematics
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Ready solution of the problem. The sorcerer of Arutyunov. Task number 81.
81 - 90. Using the theory of quadratic forms, we can reduce the line equation of the second order to the canonical form.
- 15x2 - 2√55xy + 9y2 = 20
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Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)