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Quotient rule
Using the quotient rule, you calculate the derivative of two functions, which are divided by each other
Explanation
We are going to determine the derivative of the quotient of two functions u and v using the product rule. A division can also be written as a product, such as
You can calculate the increase with differentials as
Since the term dqdv is negligible compared to dq and dv we write
Reducing gives
Dividing by v gives
Substituting gives
so