Answer
$g(t)=\tan t$
$f(t)=\frac{t}{1+t}$
Work Step by Step
Separating the function into two processes:
$1. g(t)=\tan t$
$2. f(g(t))= f(\tan t)=\frac{\tan t}{1+\tan t}=\frac{g(t)}{1+g(t)}$
$f(t)=\frac{t}{1+t}$
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