Question

$\lim_{S \to 1/2} \frac{S + 4}{2 S}$

Answer 1

$\lim_{S \to \frac{1}{2} } \frac{S+4}{2S} = \frac{ \frac{1}{2} +4}{2. \frac{1}{2} } = \frac{1}{2} +4= \frac{9}{2}$