mpaHa^eHdeHmuhix^ zuceAa noMou^iio Anajusa BmpojimHOcmeû /^63 



qpes'b p HHmerpaA'b ffcpdxdy, pacnpocinpaHeHHi.m na Bce npomA^eme 

 ocmaBuieiic/i om^ poM6a *Hrypi.i dDCBbc, mo owbii^ho nojiy^HMt 



(6) n=~-\-p, 



u Bonpoct ripiïBe^erncfl maKHMi» oGpaaoMt kb onpeAtjieHiio BejiiranHM p. 

 Ha ceii Konei^'b, iist» KaKOÎi hii ecmb mo'iKn M, mamon BHympii oiirypH 

 dDCBbc, pa^^lycoMt r, onucBisacMi. gacroB OKpyiRHOcmu, KomopaK nepe- 

 ctTCmB cmopoHBi AB n u4D, njin iixt npo^oji^KeHia, bi> HtKomopBix'b 

 mo^Kax'b 1, 2, Z, 4. Hcho, *imo o6pamafl uçnAHH^p'b okojio paacMampn- 

 BaeMOÎi moTïKn M, ohi Ôy^emij BcmpÊnamB o5'b cmopoHu AB ii AD, uxa 

 moJiBKO o^Hy nsi. hiix-b, Kor^a ôy^emi» Haxo^ninBCit BHympii yrjioBB (iM2) 

 n (3/^/4), nMCHHO: o6t cmopoHBi bb upocmpaHcmBt yrjia (4ME) n paB- 

 Haro CMy n npomnBynojioaiHaro BepmiiHoio (iME'), a o^Hy mojiBKO, 

 Ko^/^a 6y4em'b aaKAio^amBCH bi. yrjiax'B (E'M2), {^BIF'), {ZME), (FMi); 

 BKÈ cnxB ywoBi» Bcmptia HCBOSMoaiHa. Omcio^a AerKo 3aKjiK)HiimB, ^imo 

 Bcmptqa HcnpeMtHHO nponaoîî^ein'b npii oôpameHiH v^ùAnw^fd^ BHympu 

 yrjia (FM2) n nporniiBynoAo;iiHaro ewy BepmiiHOio (^FMZ), mo ecmb, bi 

 npocmpaHcmBt y^Boeimaro yoa {FM2). BhIj ciixi> npe^liAOBB, nnjiuH^pt 

 He Mo^em-b na^arab na cmoponti AB, AD poiviSa. IloAoai^HMb (FM2) 

 zizi)-, n onpe^liAHMb amoMB yroAi. Hsb moïKii M onycmuM'b nepneH- 

 ^HKyjiapH Mk n M/ na cmopoHBi AB n AD poÔMa*, nycmb ôy^emb yro^-b 

 (lM2)=i2(p, a (3^4) = 29. TaKb KaKb yrojii, d- =z 180° — (2M3), a 

 yroji'b {hMj), no CBoiicmBy poM6a, paBHHemcfl 120*', mo naii^emcfl Q-i:z 



60° -f- Ç) 4" 9' ^ ^ + 9 -h y'. Ilycmb 6y,^ymi» AX , AY Koop^nnamHbia 

 ocii, n AP—x, PM — j; sjieMéHm'b monia^a Gy^emi. Siti. QO" . dx dy=. 

 adxdy, pasyM-fea no^b a uppai^iona^bHoe qncAO Cit/ioBamejibHO no- 



-ty^jLM'b 



^ =: 2 «y/ (-^ + 9 -f 9 ^J- 



A/e'/n. F/, Str. Se. math., phys. et na'.. Tcm, III ire part. 60 



