Compose Two Rational Functions then Determine Domain

The video tutorial explains the concept of function composition, specifically F of G of X, and how to evaluate and simplify it. It also covers determining the domain of the function, ensuring no values make the denominator zero or require taking the square root of a negative number. The domain is confirmed as all real numbers. A brief mention of G of F of X is included, noting it results in the same domain.

What happens to the domain if the function involves a square root?

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What is the domain of the function discussed in the text?

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