To evaluate $f(2)$, we substitute $x=2$ into the function:
$$ f(2)=\frac{4(2)^{3}+1}{(2)^{3}} $$
Simplifying the numerator and denominator:
$$ f(2)=\frac{4(8)+1}{8} $$
$$ f(2)=\frac{32+1}{8} $$
$$ f(2)=\frac{33}{8} $$
So, $f(2)=\frac{33}{8}$.
b. To evaluate
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