Question

Fourier series of f(x)=x(π^2-x^2)/12​

Answer 1

Answer:

am new to fourier series and i don't really know if i have understood correctly the whole concept.

I have to solve: calculate the fourier series of

f(x)=x(π2−x2)

Then ii) calculate the fourier series of f'in two ways i)Develop to fourier series f'(derivative) ii)by differentiating each term of the fourier of f.

So far i writed it as (xπ2−x3) used the odd function property and from that i concluded there are not a0 coefficient and an.

Is so far correct and what about the ii).