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Concept

Inverse Functions

Two functions are called inverse functions if they undo each other. This is, the functions

f (x)

and

g (x)

are inverses if they satisfy the following condition for all values of

x

in their corresponding domains.

$f (g (x)) = x and g (f (x)) = x$

When a function is denoted $f (x),$ its inverse is often referred to as $f^{- 1} (x) .$

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