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Thinkwell Vids: Verifying That Functions Are Inverses
This video with Professor Edward Burger examines ways to determine if two functions are inverses of each other. [12:30]
Khan Academy
Khan Academy: Verifying Inverse Functions by Composition
A video that demonstrates an example of how to verify if functions are inverses through composition. [6:41]
Other
Using Function Composition to Verify Two Functions Are Inverses
This video from college professor Daniel Kopsas examines how to verify by composition that two functions are inverses of each other. [4:08]