👉 A derivative is a mathematical concept that represents the rate of change of a function. It is used to find the instantaneous rate of change of a variable with respect to its input, or in other words, it measures how much something changes when its value changes. Derivatives are fundamental tools for solving problems involving functions and their derivatives. They provide insights into the behavior of functions and can be used to optimize processes, evaluate limits, find critical points, and solve various differential equations. In calculus, a
