... jjφ−+−+−=5,55 ,10 arctan5 ,10 5 ,10 arctan1800)6 ,11 713 5 (18 00++−=0*6,72=φCách 1: Re sIm s−5j10,5s*β 1 β2O 10 ,5Cách 2:) (18 0 21 0*ββφ++−=)6 ,11 713 5 (18 0000++−=0*6,72=φ26 ... đại 1) ()(*==ssCsGsG 1 )55 ,10 5 ,10 )(5 ,10 5 ,10 (50.285 ,10 5 ,10 85 ,10 5 ,10 =++−+−++−++−⇔jjjjKC 1 85 ,11 15 41, 205079 ,10 =×××⇔CK7,6=⇔CK2887,6)(++=sssGC26 September 2006 © H. T. Hồng - ÐHBK TPHCM ... định2.0 1 exp2<−−=ξξπPOT6 ,12 .0ln 1 2−=<−−⇒ξξπ45,0 >⇒ξ707,0=ξChọn5,04<=ntξωqđξω×>⇒5,04 n4 ,11 >⇒nω 15 =nωChọn22*2 ,1 707, 011 515 707, 01 −±×−=−±−= jjsnnξωξω5 ,10 5 ,10 *2 ,1 js...