Question

lim 4-√s / s- 16
x->16

Answer 1

that's useless

Answer 2

Thats your answer.

Answer 3

Try multiplying the top and bottom by (4 + sqrt(s))

Answer 4

\[\text{Limit}\left[\frac{4-\sqrt{s}}{s-16},s\to 16\right]=-\frac{1}{8} \]