St, 0stS7/2 S(t) = { (7-t), 7/25tS %3D f(t) is a periodic function. a) When f is "even function" find Fourier series. b) When f is "odd function" find Fourier series.

Plz solve both parts within 30-40 mins I'll give you multiple upvote

Extracted text: St, 0stS7/2 S(t) = { (7-t), 7/25tS %3D f(t) is a periodic function. a) When f is "even function" find Fourier series. b) When f is "odd function" find Fourier series.