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發(fā)布時(shí)間: 2015-9-7 08:14
正文摘要:已知曲線積分∮_L(xdy-ydx)/(φ(x)+y^2 )≡A,其中A為常數(shù),φ(x)有一階連續(xù)導(dǎo)數(shù),L是繞(0,0)點(diǎn)一周的任一分段光滑簡(jiǎn)單閉曲線,試求A和φ(x)。 ?/?x(x/(φ(x)+y^2 ))≡?/?y((-y)/(φ(x)+y^2 ))   ... |
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