B-BKOBblfl B03MymEIIia CEMH BO.'IbmHX'b n.lAHETt. 



(31) 527 



TaKwe 



, / > (m,m']mVa , ri\ 



[m,m ] = — 2(a'2Za^yz [aa {a,a ) -\- {a -h a] (a,a ) ] , 

 [m,m] = — ^■^^2)2 [«« (« « ) M J ; 



[«i,7n']wya 

 m Va' 



21. Tenepb aa^oÔHO oô'ï.acnHTb, KaKHMT> oSpasoMij onpe^'t^flroTca nepeM'tHbi bt. Ha- 

 K^jHeHm ^KJiHnTHKH H BT) npeiteapemH paBH04eHCTBiH. BooôpasHMi) Ha CB04iî He6ecH0ivn> 

 c*epHqecKiîi Tpeyro.ibHHKb , cocTaB^eHHbiii 03t> 4VT'l ôojibmHXT) KpyroBT> , npoBe4eHHbix'b 

 Hpes'fa nojiHDCbi 3KBaTopa P, 3K.iHnTHKH E H opôuTbi BOSMymaromeH njaaeTW P' ; bx stomt. 

 TpeyroJibUHK'fe CTopoHa =y,'P/i=;= uaK.ioHeHiH) 3Kj[nnTiiKn s, m yro^i b PÊP=180° — iV ; 

 CTopoHy PP H3o6pa3HMT. wpesi. a, h yro.iT> — qpea'b cp. IIpu 4B0îKeHin tohkh Becen- 



uaro paBH04eHCTBifl, npoHCxo/tameMT. oit ^-fenctnia n^ianeTbi m, no.iiocT> aKJiHnTHKH o6pa- 

 luaeTca OKo.io no^ioca op6nTbi m ; ca^^a. = èN . Bepeivn. nsBlîCTHbia TpuroHOMeTpHiecKia 

 «topMy^bi : 



sin N sin e — sio a sin cp = 0 . . . . (1) 

 cos a = cos / cos e — sin / sin s cos iV . . . . (2) 

 sin N' cot (p = cot £ sin /' -+- cos /' cos N' . . . . (3) , 



BT> KOTopbix-B a H /' cyTb KOJiHHecTBa nocToaHHbia (hji. 18), h noTOMy 4n<i><ï'epeuii,HpoBaHie 

 ypaB. (1) H (2) 4aeT% 



sin e cos N dN' -+- sin iV'cos &dz — sin s sin N' cot 9^/9 — 0 .... (4) 

 (sin £ cos /' -H siu / cos N cose) — sin /' sin e sin N dN' — 0 .... (5). 



nocpe4CTBOMTb ypaBnenia (3) mckjhohhmt. sin iV cot 9 h3t> ypaB. (4), OTnero oho npenpaTHTca bi 



sin e cos N'dN' -\- cos t sin N'ds. — (cos t sin /' sin £ cos /'cos N') ticp = 0 . . , . (4 ). 



EcAH Hpe3T> Sr npe4CTaBiiM'L 4BHîKeHie Beceeueii toskh paBH04eHCTBia , to usMlinenie dN bb 

 40jroT'l; y3.4a BbipasuTca 4pe3T. 8N — Sr; Cjit)4. h3t> ypaB. (4 1 0 (5) nojyMHMX 



cos £ sin N'dz -i-[sin £ cosA^' — cosîcos/' — sin£CosA^ cos/ — sinECosA' 8r = 0. 



(sin £ COS / H- cos £ siu / cos iV ) ti£ — sin £ sin / sin N SA' sins sin / sin A âr = 0 . . . . (5 ). 



0TCK)4a 



(sin B. cos / cos A'' -h cos £ sin / ) ds. — sin /'sin A' SA' (sin e cos / 'cos A^'-i- cos £ siu / ) = 0, 



H 



c/£ = sin,/'sin (D). 



