'•^'*^^^- ii3 



d^p Cotp — 6dpd^p Sinp \ /''V'**N ' ^ ,.,„ 



~iSd^pd*p Sinp - isdp^d*p Cotpi 



— lod' p* Sin p - 6odpd* pd ' p Cos p\ 



H- 2ti dp^ d^ p Sin p — ijd^ p ' Cosin p I 



Hh 4Sdp*d-p Sin p + isdp'^ d^p Cotp I 



— dp^ Sinp .^^ l'^:J^ .. . 'i^^t.'f ":>j ,. ,•_ i 



Ideoque, si in his sequationibus sumamuS /=ro, eique con- 

 venientem ipsius p valorem designemus per P, ipsius aur 



tern ( -) per ( ), cumfitP = fl — y.q, {acili, 



• . ■ < ^dr y ^drJ 



admodnm negotio' sequentes inde obtinebimus ffiquatlones j 

 quae quidem pro Ozzzpo", locum habebunt: scilicet 

 q = S, JO = ^0° — vR, CotP = Sin vRi 



Sin P =z Cot vR = I ^z, ( — j =0, i ^ 



VT 1.. 



C^) = — CoUvR = soCot.vR^ TT._ 4SCot.vR^ 



i ' 



