Shortest Road to Connect Four HousesWhat is the shortest road that can be constructed to connect four houses at the corners of a square one mile on a side?Show how you solved this problem,and draw a picture with your solution.http:// math.nmsu.edu/br

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Shortest Road to Connect Four HousesWhat is the shortest road that can be constructed to connect four houses at the corners of a square one mile on a side?Show how you solved this problem,and draw a picture with your solution.http:// math.nmsu.edu/br

Shortest Road to Connect Four HousesWhat is the shortest road that can be constructed to connect four houses at the corners of a square one mile on a side?Show how you solved this problem,and draw a picture with your solution.http:// math.nmsu.edu/br
Shortest Road to Connect Four Houses
What is the shortest road that can be constructed to connect four houses at the corners of a square one mile on a side?Show how you solved this problem,and draw a picture with your solution.
http:// math.nmsu.edu/breakingaway/ebookofcalculus/HandsOnUnitsInvolvingDerivatives/ShortestRoad/ShortestRoadWebPage02.html
网址中虽然有解释,但是第一步不懂原理,求分析

Shortest Road to Connect Four HousesWhat is the shortest road that can be constructed to connect four houses at the corners of a square one mile on a side?Show how you solved this problem,and draw a picture with your solution.http:// math.nmsu.edu/br
既然要建造一条路线使得到四所房子之间的距离最短,而四所房子呈正方形布置,所以先固定一个中间的一条路,长短不定,根据设未知数,算出总路长最短极限时的未知数,再算得路长