Chain rule  Derivative rules  AP Calculus AB  Khan Academy  Summary and Q&A
TL;DR
Learn how to use the chain rule in calculus to find the derivative of composite functions.
Questions & Answers
Q: What is the chain rule in calculus?
The chain rule is a rule used when finding the derivative of composite functions. It allows you to find the derivative of a function composed of multiple functions.
Q: Why is the chain rule important in calculus?
The chain rule is important because it allows us to find the rate of change of complex functions. By breaking down a composite function into its individual components, we can determine how each component affects the overall function.
Q: How is the chain rule applied?
The chain rule is applied by taking the derivative of the outer function with respect to the inner function, and multiplying it by the derivative of the inner function with respect to the variable.
Q: Can the chain rule be used for any composite function?
Yes, the chain rule can be used for any composite function, as long as it can be expressed as a composition of multiple functions.
Summary & Key Takeaways

The chain rule is a core principle in calculus used when taking the derivative of composite functions.

The chain rule allows you to find the derivative of a function that is composed of multiple functions.

By applying the chain rule, you can find the derivative of a composite function by multiplying the derivative of the outer function by the derivative of the inner function.