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4. Graphs and Functions - Part 2 of 3!
4. Graphs and Functions / Composition of Functions / Problem 12
Problem 12

Let f(x)=x3x5f(x)=\(\sqrt{\frac{x-3}{x-5}\)} and g(x)=x21g(x) = x^2 - 1. Form the function: (fg)(x)(f∘g)(x) and determine what the domain will be making sure to express your answer in interval notation. Also, be sure to explicitly list any excluding isolated points if needed.