![]() To find f(g(x)), we just substitute x = g(x) in the function f(x). What is the Process of Finding F of G of x? It is obtained by replacing x in f(x) with g(x). So we just compute the range of f(g(x)) using the techniques of finding the range of a function.įAQs on F of G of x What is the Definition of F of G of x?į of G of X is written as f(g(x)) and it is called a composite function. The range of f of g of x does not depend upon the inner function. So for f(g(x)) to exist at some x value, g(x) should exist first at at that x value. Step 3: Find their intersection (A ∩ B) which gives the domain of f(g(x))Įxample: Find the domain of f(g(x)) when f(x) = 2/(x - 1) and g(x) = 3/(x - 2).į(g(x))
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