Composite functions are formed when one function is applied to the result of another function. This means that if you have two functions, say f(x) and g(x), the composite function is written as (f ∘ g)(x) = f(g(x)). Understanding composite functions is crucial because they allow us to combine multiple functions into one, and they are particularly important when dealing with inverse trigonometric functions, which often rely on composition to simplify expressions and solve equations.
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