I don't get the concept of the notation dy/dx. Sometimes my physics teacher puts dx in the back of an equation and cross multiply with other number. Does this mean dx can be multiply like numbers? I just don't get the overall concept of dy/dx.(adsbygoogle = window.adsbygoogle || []).push({});

I'm in 3rd year calculus and I understand that derivative is the instantanous rate of change but how does it relates to the notation?

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# Dy/dx in calculus

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