4 Ltktplace Transform 82 C { * r " " ( t )= } sG{.r"(t)} - -(J5T + j2T)Z (27 )Z ~ - (-LAY (2T)Z _ _ I (4.13) As s " "( t) i s zcro a t d l poiiils whcrt\ it is definccl, with (4.42) and some rcasrangr- merit, The l ~ ~ d a traiisforrn oe ol the triangltl sigiial is tliercfore (4.45) dX(s) = ds ~ j (4.16) z ( r ) (-t)c-"'dt C{f r ( t ) }= - _ dx(s) : cl s s E R0CI.r) (447) I