2.1 Sketch the periodic function x(t) over the time interval -10 s t ≤ 20.

2.4 If we add a constant valie of one to x(t), we obtain the signal y(t) = 1 + x(1) with y(t) given overone period by The signal can be represented by a Fourier series, but with different coefficients: Explain how bo and b! are related to ao and a . Note: you should not have to evaluate any new integralsexplicitly to answer this question.