
Inverse function - Wikipedia
In mathematics, the inverse function of a function f (also called the inverse of f) is a function that undoes the operation of f. The inverse of f exists if and only if f is bijective, and if it exists, is …
Inverse Function - Definition, Formula, Graph, Examples
The inverse function is a function obtained by reversing the given function. The domain and range of the given function are changed as the range and domain of the inverse function.
What is an inverse function? - GeeksforGeeks
Jul 23, 2025 · An inverse function or also widely known as "anti function" is a function that reverses the result of given another function.Such as if an f (x) = 11, then, its inverse function …
Finding inverse functions (article) | Khan Academy
Inverse functions, in the most general sense, are functions that "reverse" each other. For example, if f takes a to b , then the inverse, f 1 , must take b to a . Or in other words, f (a) = b f …
1.4: Inverse Functions - Mathematics LibreTexts
An inverse function reverses the operation done by a particular function. In other words, whatever a function does, the inverse function undoes it. In this section, we define an inverse function …
Function - Inverse, Domain, Range | Britannica
Dec 1, 2025 · By interchanging the roles of the independent and dependent variables in a given function, one can obtain an inverse function. Inverse functions do what their name implies: …
Inverse Functions - Math is Fun
So the inverse of: 2x+3 is: (y−3)/2. The inverse is usually shown by putting a little "-1" after the function name, like this: f-1(y) We say "f inverse of y" So, the inverse of f (x) = 2x+3 is written: f …
8.1 Inverse Functions - MIT Mathematics
The commonest inverse functions are, the inverses to powers like x k xk which are called roots and denoted as x 1 k xk1 and the inverse to the exponent function, exp (x) exp(x), which is …
What Is Inverse Function? Definition, Formula, Graph, Examples
A function has an inverse if and only if it is one-to-one (or bijective). A function f has an inverse function if and only if, for every element y in its range, there is only one value of x in its domain …
Inverse Function: Definition and Examples - EDU.COM
Not every function has an inverse, a function has an inverse if and only if it is one-to-one (or bijective). This means that for each output, there is only one input, and the function never …