Which of the following function is invertible | MATH - FUNCTIONS | SolveeIt | Solveeit

Today, August 23

Question

Which of the following function is invertible

A

$f(x) = 2^{x}$

B

$f(x) = x^{3} - x$

C

$f(x) = x^{2}$

D

None of these

Answer

$f(x) = 2^{x}$

Explanation

Solution

A function is invertible if it is one-one and onto.