Typical signals and their representation sin/cos signals may be represented by complex exponential Asin( at+)=.(e/(ot+p)-e /(0+) Acos(at+)==(e/(or+o)+e (or+9)) Euler's relation e/f(ot+p)=cos(at+)+jsin( ot+)Typical signals and their representation ❖sin/cos signals may be represented by complex exponential ( ) 2 cos( ) ( ) 2 sin( ) ( ) ( ) ( ) ( )             + − + + − + + = + + = − j t j t j t j t e e A A t e e j A A t ❖Euler’s relation cos( ) sin( ) ( )       = + + + + e t j t j t