-4^1 ) s>s ( ff?- 



Igftur cuum flt 



cof i(e-fl)~cof.l(^-^a)=a1rni.iann.ic et 



cof. -; (/- c) - cof. i (/-f- (t) — 2 fin. l c fin. 1/, 



fiet omnino 



{co^b^^coClCa-^ey^^Cia.laCin.le-fm.lcria.lf^zz 



fin. I fl fin. 1 ^ (cof. l (/H- ^) cof. -i (/- c) - cof. ; (« H-- 0' 

 - cof. i (a + f) Gof. I (/- c} -h cof. I (fl + cof. ; (/-+- ^) ) 

 =fin. U fin. I<cof.^(/-0+cf.'(«+0)(cf4(/-f -cf.K«+0) 



= 4fin.^afin.;^fin.i(a-}-^-t-/+0^i".U<' + ^-/-0 

 cof. ; (<2 -i- f -*-/- c) cof. ^ (a 4- ^ -/-V- 0« 



Similique ratione fiet 



^cof. i(^z-0'-cof. i^')(fin. iflf fin. J#- fin. if fin. |/) 



r:4fiM.iflfin.iffin.i(a-^-f/-0fin.i(«-^-/+0 

 r: cof. i (« - f -l-/-i- cof. K^ -1-/4- <r - ^) • 



Hin<c bina ifia produfta coUedim fiimendo fiet 



(cof. i ^^ - cof. i (a H- 00 (cof. K'^ - 0' - cof.J ^O Q.' =: 



[{in.lia^-.e-tf-^cy{it)J,ia + .e-f-c) 1 



^r . .r . Jfin.i(fl-,^-|/-^)fin.:(«-^-/+0 i 



^^^^"•-»^^^°-^1cof.K.-F.+/-ocof:i(«+^-/+o i^ 



[cof.i(«-^+/+Ocof.K^+/+'^-^)i 

 vnde fi fimul pro fin. j^* fubftituatur eius valor 

 ^ , ^ (fin.i£'fin.i/--fin.|«fin.iO(fin.itffin4f-fin.i^fin.if) 



lin.iflfiri.iff — fin.jf nn.i/ 



jjatet expreffionem pro tang. R in Thepremate propofitam 

 ttCte fibi conftare. 



§. 38 



