A quotient is the result of dividing two terms or expressions. e.g. 
is a quotient.
To differentiate a quotient the best way is often to use the Quotient Rule.
The Quotient Rule Formula
This states:
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The Quotient Rule looks complex, but with practice, which is essential, it should become more straightforward.
Example
Alternative Quotient Rule Formula
The Quotient Rule can also be written in 
notation:
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Example
Note: The derivative of the quotient is undefined for values of x that make v zero.
