» Differentiation Rules

The process of finding a derivative is called differentiation. Differentiation and integration constitute the two fundamental operations in single-variable calculus.

Differentiation rules

The derivative of the sum, diference, product and quotient of:

$$u=u(x)\;\mathrm{and}\;v=v(x)$$

can be found as follows:

\begin{align} {(u\pm v)}'&= {(u)}'\pm {(v)}'\\ \\ {(u\times v)}'&= {u}'\times v + u \times {v}'\\ \\ {\left(\frac{u}{v}\right)}'&= \frac{{u}'\times v - u \times {v}'}{v^{2}}\\ \end{align}

Multiplication by constant

$${(c\times u)}= c \times {u}'$$

Composition of Functions

$${u\left [ v(x) \right ]}'={u}'\left [ v(x) \right ]\times {v}'(x)$$

See also:

Differentiation Rules FAQ

What are differentiation rules?
They are formulas for derivatives of sums, products, quotients, constants, and compositions.

Why are they useful?
They make it faster to compute derivatives of common function combinations.