\( f^{2} 1 \) Find two differentiable functions \( f \) and \( g \) such that, \( \lim _{x \rightarrow 5} f(x)=0, \lim _{x \rightarrow 5} g(x)=0 \) and \( \lim _{x \rightarrow 5} \frac{f(x)}{g(x)}=0 \