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数学
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求由方程xy+e^y=2所确定的函数y=f(x)的导数dy/dx
人气：437 ℃ 时间：2019-08-21 10:32:59
解答
方程两边对x求导：
y+xy'+y'e^y=0
y'=-y/(x+e^y)
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