Calculate the Fourier series of the following function given on the period -3

Calculate the Fourier series of the following function given on the period 2, f(t) o, Mark the the series shown below which is correct. Select one: sin [(2n 1)Tt/3] o O c. O f(t) = f(t) = f(t) = 2 00 sin (2nnt/3) n sin (2n7rt/3) n cos (2n7rt/3) n sin [(2n 1)Tt/3] 2