Test two functions to determine if they are inverses of each other.[br]A video explanation of the topic is available at [url]http://patrickjmt.com/inverse-functions-the-basics/[/url], [url]http://patrickjmt.com/finding-the-inverse-of-a-function/[/url].[br]Some video examples are available at [url]http://patrickjmt.com/finding-the-inverse-of-a-function-or-showing-one-does-not-exist-ex-2/[/url], [url]http://patrickjmt.com/finding-the-inverse-of-a-function-or-showing-one-does-not-exist-ex-3/[/url], [url]http://patrickjmt.com/finding-the-inverse-of-a-function-or-showing-one-does-not-exist-ex-4/[/url].