Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
一个方形底无顶的矩形盒必须有32立方厘米的体积。底部材料成本2元/平方厘米,侧面成本1元/平方厘米。最小化总成本。
一个方形底无顶的矩形盒必须有32立方厘米的体积。底部材料成本2元/平方厘米,侧面成本1元/平方厘米。最小化总成本。
Natural Language
Math Input
Extended Keyboard