for this equation, y=vx, it's the same as v=y/x(adsbygoogle = window.adsbygoogle || []).push({});

however, if i differenate the 1st equation, dy/dx=v+x*dv/dx

and if i differenate the 2nd equation, dv/dx=(1/x)*dy/dx + [-1/(x^2)]y

but both differenated equations don't seem the same...

does somebody know where my calculuations went wrong?

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# Homework Help: Calculation question

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