"^^ ) 35 8 ) !-c^- 



mox patct ; vcruni dc vnlorc qiicm ibi pro cxccntricitatc 

 attuiimus , vix obuium cflc potcrit, cvndcm non nifi vni- 

 cam admitterc dctcrminationcm. Pcrlpicuum ai'tem idcm 

 mox fiet, fi quacramus valorcm ipfius -^ opc formulac 



Quum enim cfiet 



, ^ fin. .' a' ^ r ^ 



cot. ; (p — — cot. 6 , fict 



fin. [ a lin.d 



cot.;±'-r r^ fin.la"— 2fin.;a'fin.'.acor.cT+fin.;a*cor.25 



^ -cof. (p-- 



cor.;Cp'--fi 

 hinc 



I - cof. $ — 

 hinc ob 



fin. ; J'-2 fin. ; a' fin ; a cof. J+fin. ; a' ' 

 fin.;a'(i-cor.2 5) 



fin. ; a" - 2 lin. ; a' fiu. ; a cof 5 + fin. ; a' 



2 fin. 'a*- 



i- — ;(i-^-)=z;fi-cof.a)=:- — '-, fiet 



, (iln ;a"— sfin. ;afin.;a'cof.5-ffin.;a') 



_ _ _____ 



Inucnto igitur pcr hanc acquationcm y, ob ^ — ^ — -^- , 

 innotclcct quoquc ^. 



§. 27. Problcmn Quartnm binas itcrum ndmitut 

 folutioncs , quum cnim inucntus fit cof (5 — [3)— M cof |3 , 

 fi ponntur M cf)f p z cof. jjl, crit (J — (3 vcl — |jl, vcI = - |JL, 

 priorcm cafiim in cxtmplo §. 18. ailato confidcrauimus. 

 Vcrum cnimucro fi ponatur: 



