# Maths - Quotient Rule

> Source: https://ollybritton.com/notes/a-level/maths/topics/quotient-rule/ · Updated: 2021-03-23 · Tags: maths, further-maths, differentiation, school

## See Also
- [Maths - Differentiation](https://ollybritton.com/notes/a-level/maths/topics/differentiation/)
- [Maths - Product Rule](https://ollybritton.com/notes/a-level/maths/topics/product-rule/)
- [Maths - Chain Rule](https://ollybritton.com/notes/a-level/maths/topics/chain-rule/)

## Flashcards
##### What is the Quotient Rule used for??
Finding the derivative of two things being divided.

##### $$\frac{d}{dx}\left(\frac{u}{v}\right)$$ What is this equal to??
$$
\frac{v \cdot \frac{du}{dx} - u \cdot \frac{dv}{dx}}{v^2}
$$

##### What is important you remember about the product rule??
The order.

##### Where does the $v^2$ bit come from in the product rule??
It's actually the product rule with $v^{-1}$, which goes to $\frac{1}{v^2}$

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