The area of a rectangle (see figure) inscribed in one arc of the graph of y = cos x is given by A = 2x cos x, 0 < x < π/2. y (a) Use a graphing utility to graph the area function, and approximate the area of the largest inscribed rectangle. (Round your answer to two decimal places.) A = (b) Determine the values of x for which A ≥ 0.46. (Round your answers to two decimal places.)

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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The area of a rectangle (see figure) inscribed in one arc of the graph of y = cos x is given by
A = 2x cos x, 0 < x < π/2.
y
2
(a) Use a graphing utility to graph the area function, and approximate the area of the largest inscribed rectangle. (Round your answer to two decimal places.)
A =
(b) Determine the values of x for which A ≥ 0.46. (Round your answers to two decimal places.)
<x<
Transcribed Image Text:The area of a rectangle (see figure) inscribed in one arc of the graph of y = cos x is given by A = 2x cos x, 0 < x < π/2. y 2 (a) Use a graphing utility to graph the area function, and approximate the area of the largest inscribed rectangle. (Round your answer to two decimal places.) A = (b) Determine the values of x for which A ≥ 0.46. (Round your answers to two decimal places.) <x<
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