Find the Fourier series expansions of the functions shown in Figs. 1.58(ii) and (iii). Also, find their Fourier series expansions when the time axis is shifted down by a distance \(A\).

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(d) (e) x(t) (a) (b) x(t) (i) A (ii) Odd function x2(t) (iii) Even function FIGURE 1.58 Even and odd functions.