What are the steps to find the fourier series of x ^ 2 - 2 in period of -2 < x < 2 ?
What is -LSB- math -RSB- f -LRB- x -RRB- -LSB- / math -RSB- if -LSB- math -RSB- ff -LRB- x -RRB- -LSB- / math -RSB- or -LSB- math -RSB- f ^ 2 -LRB- x -RRB- = -LRB- x -LSB- / math -RSB- -LSB- math -RSB- ^ 4 + -LSB- / math -RSB- -LSB- math -RSB- 4x ^ 3 +3 x ^ 2 +4 x +2 -LSB- / math -RSB- -LSB- math -RSB- -RRB- ^ 4 ? -LSB- / math -RSB-