題組內容

7. Definition: The Fourier series expansion of a function f(t) is given by 
f(t) = a0 + =1[ancos(nw0t) + bnsin(nw0t)], w0 =.       (1)
Function f(t) is given by f(t) = and f(t) = f(t + 2π). Expand f(t) by Fourier series.

(b) (4%) Find the values of a0, a1, a2, a3, b1, b2, b3.