Chapter 1 Signals and systems Sinusoids and complex exponential o Probably the most important elemental signal that we will deal with is the real-valued sinusoid. In its continuous-time form, we write the general form as x(t)=Acos(@t +o) o Maybe as important as the general sinusoid, the ca exponential function will become a critical part of our study of signals and systems. Its general form is also written as x()=C 2006 Fall a Is complex2006 Fall Sinusoids and Complex Exponential ⚫ Probably the most important elemental signal that we will deal with is the real-valued sinusoid. In its continuous-time form, we write the general form as ( ) cos( ) x t = A 0 t + 0 0 2   T = Chapter 1 Signals and Systems ⚫ Maybe as important as the general sinusoid, the complex exponential function will become a critical part of our study of signals and systems. Its general form is also written as t x t Ce ( ) = a is complex