526 (30) 



Ji,. IlEPEBOmHKOBT,. 



Oxcio^a cji'fe^yeT'b, ito no^iubia ro^HiHo-B-feKOBbia BosMymenifl ajieMCHTOBT. paacMaTpiiBaeMou 

 a^^icb n^aHCTbi m BbipaataioTca qpes'b 



hf = [m,m'] f sin («' — o) H- [m,m"] /'" sin (o" — o) -t- [m,m"']f " s'in (o " — 6)) -+- . . 

 8o = (m, m') -+- {m.,m ) -+- (m, m'") h- . . . — [m, m ] — cos (o' — «) — - cos (o" — 



— [w,m" ] y cos ((.)"' — o) — . . 



u 



S/=(m,în')tang/'sin(iV — iV')-»-(»M,m")lang/'siD(iV — N )-4-(în,m"')tang7"'siiifA' — N"')-\ 

 8N= — (m,m') — (m, m") — (m'm ") — . . . . -i- {m,m) cos (iV — N'j 



(Z 



//, tang 1 



tang 



L cos (A' — A") 



tang 

 tang / 



tan: 



— , COS (A^ — A 



si ^ 



20. KoatixïJHuieHTbi {m,m'), [m,m'], ii np. OTiiocaTca kt> 4Ï>ncTBiaM'b m',m", ii np. iia m; 

 mii Huxii Hje onpo/it^iaioTca K03<ï><i>HU.ieHTbi (m,'TO), [m,'TO], h np. OTHOcamiaca Kb oôpaTHOJiy 

 4+>HCTBiK) m ea m,'m^' ii np. ./1,'bncTBnTejibHO, oôuxev. BbipaHcenie 



s (0) (1) 



(2) 



(1 — 2a cos p H- a') = -4- cos ^ -i- 6^ cos 2p h- 



OTT. S = — I , npeBpamaeTca bt. 



, , (0) (l) (2) 



(1 — 2a COS p H- a^)^ = | "^^-è ^ -f- ô-- cos 2^ -h 



Ho Kor^a npHMeMT. 



(a'^ — 2aa'cosp -+- 0^)'^ = a{i — 2a cos ^ a^)^ =(a,a')-f-(a,a')'cos ^ (a,a')"cos 2^ h- ... , 

 Tor4a BbiBe^eM'b , hto 



, ,(0) , , , (1) 



[a,a) = \ab—i, {a,a) =ab—i^, h np. 

 npHTOMT> CHMeTpniHocTb cyMMbi 0.'^ — 2aa cos p H- 0TH0CMTe.ibH0 a H a noKaabiBacT^, hto 



(a, a') — {a',a), {a,a)' = (a,'a),' n np. 



Il TaKT. 



m, m = — 77-75 — ^ o_ ' = — 77-7^ — 5: u,a , 



m 



/ > 3mn a'^a , r 



OTCi04:a 



TA* 



m na'^a m na 



(m.m mn a •'a mn a 



