Sketch 4sinc(4ω), and then determine its bandwidth. 2. f(t)=2+3cos(20πt)+2sin(20πt)+3cos(40πt)+2sin(40πt) For the given trigonometric Fourier series function with a fundamental frequency of 10 Hz, what are the values for: −a 0
−a 1
−a 2
−a 3
−a 4
−b 1
−b 2
−b 3
−b 4