(L). Evaluate
dxdy, where Ω is the region in the first quadrant bounded by the lines x+y = 1 and x+y = 2.
阿摩線上測驗
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阿摩線上測驗
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(L). Evaluate dxdy, where Ω is the region in the first quadrant bounded by the lines x+y = 1 and x+y = 2.