Calculate the Following Limit(s) If They Exist $\lim _ { x \rightarrow 1 }$

Short Answer

Calculate the following limit(s) if they exist.
- $\lim _ { x \rightarrow 1 }$ $\frac { 1 } { x ^ { 3 } - 1 }$ + 1
Enter either a fraction, integer, or the words "does not exist"