Power Rule

The Power Rule in calculus is a fundamental principle used to differentiate functions of the form \( f(x) = x^n \), where \( n \) is any real number. This rule states that the derivative of \( f(x) \) with respect to \( x \) is \( f'(x) = nx^{n-1} \). In simpler terms, it allows us to find the slope of the tangent line to the graph of \( f(x) \) at any point \( x \). The Power Rule is particularly useful in many areas of science, engineering, and economics where rates of change are important, making it a foundational concept in calculus.