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设y=y(x)由方程e^xy+sin(xy)=y确定,求dy/dx.
人气:115 ℃ 时间:2020-04-15 16:29:08
解答
e^(xy) + sin(xy) = y
(y+xy')e^(xy) + (y+xy')cos(xy) = y'
y'=(ye^(xy)+ycos(xy))/(1-xe^(xy)-xcos(xy))
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