dy/dx=(x+y)/(x-y),求y=f(x).
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dy/dx=(x+y)/(x-y),求y=f(x).dy/dx=(x+y)/(x-y),求y=f(x).dy/dx=(x+y)/(x-y),求y=f(x).dy/dx=(x+y)/(x-y),dy/d
dy/dx=(x+y)/(x-y),求y=f(x).
dy/dx=(x+y)/(x-y),求y=f(x).
dy/dx=(x+y)/(x-y),求y=f(x).
dy/dx=(x+y)/(x-y),dy/dx=(1+y/x)/(1-y/x)
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dx/dy 是相当于 y=f(x)求一阶导数吗dx/dy是指y对x求导还是什么dy/dx呢.