A function f (t) has the following Fourier decomposition:
(i) How many harmonics are displayed in this approximation?
(ii) Make a list of the Fourier an and bn coefficients and, from these, calculate the amplitude at each of the frequencies. Now sketch the function in the frequency domain .You should ignore any phase differences.
(iii) If the variable t is measured in milliseconds, what is the approximate fundamental frequency of this function?