[d(ylny)/dy]*dy/dx-1+dy/dx=0
dy/dx=1/(2+lny)
如函数y=y(x)由方程ylny-x+y=0确定,求dy/dx
如函数y=y(x)由方程ylny-x+y=0确定,求dy/dx
其他人气：955 ℃时间：2019-09-20 20:36:05
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