x y满足x>=0 ,y>=0,x+2y<=2. 若0<=ax+by<=2 (a,b)所形成的区域面积.
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killu OP 高三党求解答
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hg349713171 Feb 16, 2015
@killu 你真是高三党吗。。。这种题高一就会了吧，完全送分的啊，我也是高三党
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canghaicc May 12, 2015 via iPhone
不是只有我想到二重积分吧
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lizhaoxi Apr 24, 2016 via Android
谁能写一下详细步骤或思路啊？
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