👉 In mathematics, infinitesimals are a concept that represents small changes in quantities. These small changes can be represented as fractions of a larger quantity, and they are used to study limits and continuity. For example, consider the function f(x) = x^2 - 3x + 1. We say that x approaches zero is infinitesimal if the value of f(x) is approaching zero as x increases without bound. This means that as x gets closer and closer to zero, f(x