Fourier coefficients of a pulse train A- x(t) t t To Consider the periodic signal shown in the picture, defined as x(t) = 0.6rect (174) + 0.6rect (t-2t) ; 0 < t < 3. 0.4 Find the expression for its Fourier coefficients. Tip: Choose wisely the interval over which the integral is calculated. You can choose any interval as long as it has the length of 3. In this case you will make your life a lot easier if you choose the interval so that the sine parts cancel each other, due to the sine being an odd function.