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Asked by Arsh 3

A rectangular box opens Ata the top is to be formed from a rectangular piece of cardboard which is 3 m * 8m. What size of square should be cut from each corner to form the box with maximum volume.?
5 years ago

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Answered by Reiny
Let each side of the cut-out square be x m

Volume of box = (3-2x)(8-2x)(x) = 24x - 22x^2 + 4x^3
dV/dx = .....
set equal to zero and solve for x
5 years ago
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