Answer
$f(g(x))= \dfrac{1}{x^2}$
$g(f(x))= \dfrac{1}{x^2}$
Work Step by Step
Substitute g(x) in f(x):
$f(g(x))= \dfrac{1}{x^2}$
Substitute f(x) in g(x):
$g(f(x))= \left(\dfrac{1}{x}\right)^2=\dfrac{1}{x^2}$
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