Draw a graph of the function for -4pile tle 4pi and obtain

Question

A periodic function f(t) of period 2π is defined within the period 0≤ t ≤2π by

Draw a graph of the function for -4π≤ t≤ 4π and obtain its Fourier series expansion.

By replacing t by t -π in your answer, show that the periodic function f(t - π) - is represented by a sine series of odd harmonics.

7.2.8 Exercises