1^8 SOLVTIO CENERALIS 



debeat euanefcere erit ({ob''-'-i-oc''—' & - ^''"~'''if; 



ab bc 



^g=: -i. Ponatur — =3^, ent — —q 



bc ab bc 



■^-dq^ et pro ob pofito.f, erit Ofii:j-l-i^.f,. habebi- 



turque (2/-' ^-4- n-x)s''-^qds-s''—Hq-\-dq)-{n-i') 



s^^-^qds^b^ — is-' q-\-i''-' dq-^iH-i^s^^-^qds) 



(y, Ex qua formatur ifta aequatio V. b^-—'P.cy 



:i:;P-f-^P, vt prodeat requifitus valor ipfius P. Fiet 

 autem ex ifta aequatione 2 Pjy/^ -{-(«— i ) P^^/.f~ 



sq dP. Huiusque integrale j"— ' q- —? y feu P ————— 



Si propofita fuiflet haec formula /S dx , vbi S denotat 

 fimdioncm quamcunque ipfius /, prodiiflet PmjjjT^ 

 Et huic formulae JSXdx refpondet valor P— iz: 

 ^^—^. Atque generatim fi fuerit T fundio quaecunque 

 ipfarum i^jetx; erit pofito dT ■:zz?ds-^M.dj -{-^ 

 Hdx, P = t{i|li(L^-^M), fcripto q loco ^^ 



u-- 



§. 23. Propofitus nnnc fit hic caliis, quo- jTds 

 (\bi T vt ante eft fun<flio quaecunque ipfirum .v,j' et /, 

 ct dTz:::.Lds^Mdj-\-Ndx) in duabus curuis 

 proximis debcat efle idem. Erit ergo T. ^^-H(T-i- 

 dT)bc-\-(T-{-2dT-hddT).cd—T.a^-i-(T-{-dT) 

 €y-{^i:T-]-2dT-^ddT)yd. At difFerentiaha //T 

 et ddT in vtroque mcmbro non funt aequalia, fed 

 differunt pro pundis § et y. Ponantur autem primo- 

 xequaija. erit refiduum fr ilhid membrum ab hoc fub- 



traha- 



