# Thread: Fourier Series - f(x)=x^2, -1 \le x < 1

1. ## Fourier Series - f(x)=x^2, -1 \le x < 1

Folks,

Could someone check my work as attached? Fairly short.

Actually I did it using the half range series but I am not sure if I am suppose to do it the 'long' way based on the way it was asked in attachment...?

Thanks

2. I haven't checked it carefully, but it looks correct.