∫( e^x sin y- y )dx + (e^x cos y - 1)dy,是(2,0)的半圆周y=√2x-x^2麻烦您了
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∫( e^x sin y- y )dx + (e^x cos y - 1)dy,是(2,0)的半圆周y=√2x-x^2麻烦您了
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