f(t)] a In any given period the function is parabolic function of time. 1. Determine the Fourier series coefficients: do and an, bn (n 1). 2. Report the value of the following expression: S = ao += (a + b) 3. If the actual period is given by a x 0.5 x 10-3 seconds, what is the principal frequency fi of the signal? 4. Considering the 12-note equal-temperament system, what is the closest note to fi? (Include octave numbers and use Do-Re-... notation). Examples: Mi3, Do#2, etc. 5. What is the difference between the note found in part 4 and fi in cents?