8 14-5 Waveform synthesis f(t)=5-- SInar、10 10 10 sin 2ot sin 3at +. 2 37 Synthesis is a combination of so as form a whole f(t 10 0 2丌§14-5 Waveform synthesis f t = − t − t − t +      sin3 3 10 sin2 2 10 sin 10 ( ) 5 Synthesis is a combination of so as form a whole. 2 t f (t) 105 0