作者henry9621205 (清心小子)
看板trans_math
标题[考古] 93中正
时间Sat Jun 12 02:42:50 2010
The base of solid is the region in the xy-plane bouned by the y-axis
and the lines y=1-x,y=2x+5 and x=2.Each cross section perpendicular
to the xy-plane is a square.Find the volume of the soild.
ans:104
帮解..谢谢！！
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