Overview Composition of Functions

The video tutorial introduces the concept of function composition, explaining how one function can serve as the input for another. It covers the notation used in function composition, such as 'golf' and 'fog', and provides practical examples to illustrate the process of evaluating and simplifying composed functions. The tutorial aims to help students understand the relationships between functions and how to apply composition in mathematical problems.

What is the significance of the notation used for composition of functions?

How can you simplify the expression after evaluating the composition of functions?

Describe the process of expanding the expression (X + 2)^2.