Maxima and Minima(Addmaths)

Question

A piece of wire of length 100cm is used to form the 12 sides of cuboid with a base that measure 2x cm and 3x cm.Show that the volume of the cuboid,Vcm³ is given by V=30x²(5-x). Find the value of x such that the volume of the cuboid is a maximum.Hence,calculate the maximum volume of the cuboid.

Comments

我可以问一下答案是多少吗？

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x=10/3
V=555/5/9

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真的不会做才reverse engineer这题的解法吧

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ok 谢谢你！

Answer 1

希望可以帮到你～

（终于第一次算对你问的题目了哈哈哈哈哈）

Comments

谢谢！

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不客气！