The area between two curves y = 1 - x and y = e^x from x= -1 to x=4 is?? 再問一題有關表面積的.. fond the volume under the surface f(x,y) = e^-y^2 and over the domain D which is hte region bounded by curves y = x ,x = 0 and y = 3 這兩題我翻了一下補習班的題目也沒找到類題..解法也沒思緒 希望各位能幫忙一下..感激不盡^^ --

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