\f3. Use a continous Fourier series (fourierSeries.mix) to approximate the triangular wave form: Plot the first four terms and the summation between -2 and 2 with a step size of 1/256. In addition, stem(X,Y) use to display the amplitude of the terms for a period of 2. Fourier Series 0.5 0 -0.5 -2 -1.5 -1 -0.5 0.5 1 1.5 2 - o Amplitude of Terms -0.05 -0.1 -0.15 -0.2 > -0.25 -0.3 -0.35 -0.4 -0.45 -0.5 0 0.5 1.5 2 2.5 3