A rectangular container with a square base is made to contain 720 m3 . The cost of materials for the base, top and four sides is $12/m2 , $8/m2 and $3/m2 respectively. Find the dimensions of the container such that the cost of materials is a minimum.
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differentiation (2)
2008-03-28 9:22 pm
回答 (1)
2008-03-28 9:59 pm
✔ 最佳答案
Please refer to the following solution:圖片參考：http://hk.geocities.com/stevieg_1023/MIN1.gif
圖片參考：http://hk.geocities.com/stevieg_1023/MIN2.gif
收錄日期: 2021-04-25 17:20:25
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080328000051KK01320