I 



mpaHci^endemnHhixr, lucejfs noMovpio Anajiuaa B/hpojimHocmeû 525 



npoiiajje^eHiio eB X 2Tt. CBepxt inoro, noÀOïsmm> AP ~ D'P' ^ x, 

 ae — h, CE ~ r, DB — aiy n: /, AC — a ; naii^emciï AD = a -j- r — /, 

 IW^ a + Vr' — F — -VTZrH^^ JTe — Vr — h\ TE— r ~ V'/-^ — h\ 

 ll3o6pa3iiBï>, KaKi. n npeaij^ie, iipeai» z iicKOMyio BiposmuocniB, nojiyuiM'b 



^ 2.T (a + r) • 



Il3i> CKasaHHaro Bwme, AerKO Bn^irnb qmo 



m — 2J^ (p dx, 



n 2q) i) — 2J Q d(p 

 m ^ 2(p'x — 2fxd(p, 

 HaGAio^aa npiimoMi qino npe^tJiti omHOCHinejii.HO çi ôy^ymi y 0 n 



arcSînj, a Bt paacyai^eHiii ç)', y' ~ arc Sirij ii ^' ~- 



Ho H3i> mpeyrojibHHKOB'b CMP ii aP'e bmeo^hmi» 



" ^ y/» _ _ X 



iijin 



7t 



a' 



() a — / CoS(f -\- Vr '^ — l'^ Siri'iç, 



c^tAOBameABHo 



la,ig<p 



n — 2{a+Vr'-h'- Vl'~h')arcSin~-2j°''^'''l{a-lCos(p-^Vr' -P Sm^^^ 



n 



