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For functions $f$ and $g$, the composition $(g\circ f)(x)$ means:
A$f(g(x))$
B$g(x) + f(x)$
C$g(f(x))$
D$g(x)\cdot f(x)$
Answer & Solution
Correct answer: C. $g(f(x))$
Composition g∘f applies f first, then g: (g∘f)(x) = g(f(x)).
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