The sum rule is a calculus rule that states that the derivative of the sum of two functions is equal to the sum of their derivatives.
The product rule is a calculus rule that allows us to find the derivative of a function that is the product of two other functions.
The quotient rule is a calculus rule used to find the derivative of a function that represents the division of two other functions.
The chain rule is a calculus rule used to find the derivative of composite functions, where one function is applied to another.