ct hac aequatione per ilhim (A) multiplicat.i proditr 



e(cof. '0' cof. ; (|)^^ ( I -4-f )' — nn. ; (t' {\n.l(h'U i — ^V ) _ 



( I -t- eco-\.(pj (, 1 -t- f col.^' ; 

 e' ( cof. ; vfy' cof. ; ^^/^ '(r-f-fO' — fin.^xly^fin.Iv^^Ti— gp') _ 

 ( 1 -+- f^ col. vp ; ( I -H t"' col". \p ; 

 <juac cnoluta ob 



2 coi'. ; (p' — I -+- cof. (pi 2 fin. ; Cp= zn I — cof. Cf> etc. 



iii hanc tninsformatur: 



, f» , , _t- co''. (I) co'. {i>^ ' -t- » ( I -)- p' n cof. (t -^7 cor.(t)^ ) 



[ i t- e co',. (p ) { i -t- e co_ . ^P' 

 , p/2 , , _)_ cV. vjy c of. v}/' 1 -4- P^ ( I -I- P^^ 1 ( of. vj/ -t- c-if. \J/ ) 

 I -I- e' CJ r.-vj/ / v' 1 -t- e cOj. v|/ ) 



Et fi haec acqualitas vrriuque a binario fubtrahatur, fiet: 



(l _ ^2 \ i 2 -*- <• coJ^H) -^ i> coj. (ji' ) — / ^ _ ^ 3 \ 3 -»- f • co/ . vj/ -)- p' cqf. \y ) ^y^ 

 >■ -^ ( 1 -I- e cjj .4> ! i '« -r- f co, . (J)' ) ^ ^( i-i-e'co_,.vJ/)i i-i-e'c3;-ii'' )* 



(i —e')( ': x-j- ! — 5^) = 



V ^ V , -^ e o^ I -H e co,. 4>' ^ 



v^ ^ ''•^ I -T- e' coj.^~^ i -t-e' coj. vJ/'>' ' 



tude multiplicata hac acquatione vtrinque per a^ ob 

 r =: _J*— • r — ^^' • 



I t-e0j.;J>' i-r-fC.».^'' 



-- '■'— «e' = --^- 



- 1 -I- f CJ . vj/ = I -I- c" CSJ. vj/ 



fit omnino fnfiis fubftitutionibns r -j- r^ =: f -|- ^. Tum vero 

 fi ab acquationc (A) fubtrahatur ilh (C) fit: 



_ (cof ; cof ' (p^ -K fin. L Cp ^" -L^!^) _ 

 y ( I -h f cof (pj ( I -H f cof. cpo "" 

 . _ ^/, X (cof. ; \| / c of ' \|y^ -f- fin . .; vl^ fin. l vp^ ) ^^^^ 



y ( I H- ^ cof v[/ ; (^ I -+- ^' cof. ^4^0 



ri— fMcor. ;rct)— (|)') _ (i— ^ ')cof ;(vj>— y^Q 



jTXT^ cof. vf); (i -Hf cof (p^; y ^i-h^' cof. vjy^ (i -»- 1' col'. vl^ ; 



cc 



