inverse functions

An inverse function is a mathematical operation that reverses the effect of another function. If a function takes an input, transforms it into an output, then the inverse function takes that output and returns it to its original input. Think of it like a two-way street: applying a function moves you forward, while applying its inverse takes you back. For example, if the function doubles a number (f(x)=2x), the inverse halves it (f⁻¹(x)=x/2). In essence, inverse functions undo each other, providing a way to reverse the original transformation.