Typical signals and their representation sin/cos signals may be represented by complex exponential )) A Asin(at+p)= cos(t+p)=号 (eo+o）+ejo+p)） Euler's relation e)-cos(@t+p)+jsin(ot+p)Typical signals and their representation sin/cos signals may be represented by complex exponential ( ) 2 cos( ) ( ) 2 sin( ) ( ) ( ) ( ) ( ) ω ϕ ω ϕ ω ϕ ω ϕ ω ϕ ω ϕ + − + + − + + = + + = − j t j t j t j t e e A A t e e j A A t Euler’s relation cos( ) sin( ) ( ) ω ϕ ω ϕ ω ϕ = + + + + e t j t j t