Reshebnik Arutyunov Yu N189 Setting Higher Mathematics

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Uploaded: 21.08.2017
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Ready solution of the problem. The sorcerer of Arutyunov. Task number 189.

181 - 190. Solve the following tasks.

189. From a round log, whose diameter d, it is required to cut a beam of a rectangular cross-section. What should be the width and height of this section, so that the beam would exert the greatest resistance to bending?
Comment. The resistance of the beam to bending is proportional to the product of the width x of its cross-section by the square of its height y: Q = kxy2, k = const.

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Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)


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