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Mathematics, 02.04.2021 04:00 mikurrjurdan
Use Lagrange multipliers to prove that the rectangle with maximum area that has a given perimeter p is a square. Let the sides of the rectangle be x and y and let f and g represent the area (A) and perimeter (p), respectively. Find the following. A = f(x, y) = p = g(x, y) = ∇f(x, y) = ∇g = Then = 1 2 y = implies that x = . Therefore, the rectangle with maximum area is a square with side length .
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