# Complex Zeroes

**Calculus**Level 3

A function \(f\) is defined by

###### Problem credit:

\[ \lim_{n\rightarrow \infty}{\frac{x^{2n}-1}{x^{2n}+1}}\]

Find the sum of all points where the function is *not* continuous.

**Details and Assumptions**:

- No L'Hôpital's Rule is allowed.