Determine all solutions for the following equation.
where $n$ is any integer, and the base angles is between $-\frac{\pi}{4}$ and $\frac{\pi}{4}$.

Use radian measure and enter your answers using at least four significant digits.

Note: A problem like this is usually made easier by using a double-angle formula. However, this is an exception to the rule - try solving this problem using just standard techniques for solving inverse trig equations, no trig identities necessary.