Wize University Calculus 1 Textbook > Derivatives
The Chain Rule

The Chain Rule
This differentiation shortcut lets us take the derivative of composed functions. (functions inside functions)
The Chain Rule
The derivative of a composition of two differentiable functions f(y) and g(x) (so that the composition f(g(x))is well defined), is
[f(g(x))]′=f′(g(x))g′(x)

Example: The Chain Rule
Find the derivative of the function y=(2x−5)10
y′=10(2x−5)10−1×2=20(2x−5)9