Please see the attached file for the fully formatted problems.
See f(x) in the file.
1. Sketch f(x) over -3<x<3
2. Is f(x) odd, even or neither?
3. Solve for the Fourier coefficients.
4. Write out the Fourier series expansion up to n=3
The 6 page solution shows in detail how to evaluate the Fourier coefficients of the series expansion of f(x).