CJLX:n.I VJKJATIONVM. 75 



Siipereft ergo \x definiamiis o tt, eft autem 'nzi^f^dx, 

 et qiiia ^ eft fundio Uttetarum .v, J', p, ^, r etc. 

 tantum , fiat differcntiando : 



d^—nxdx-^n dj -\- p iip 4- <) ^^ 4- r *-/> + etc. 



ex quo concluditur eius variatio : 



^jzzn^j-l-p^^^-f-q^-l^^-t-vl^V-Hetc. 

 tum vero, ob o i^ — ^J^^dx-^^f^^dXy erit : 



^7r-/^A'(n^^-hpy/-^q^-//-i-r'^|i^4-etc.) 



Quamobrem habcbimus Jhdxj^dx^ i:zr: 



/L^.x/g^x//.v(11^^ + py/4-q^^^ + r'^-+-etc,) 



Vt iam hanc formulam a fignis integralibus muitiplica- 

 tis hberemus, ponamu? /Lrt^.vjz W , critque : 



jLdx^U-\V§n-f\Vd$n, 



Tcrum ^^ n-(5 3^/^-, vnde/L^/.v^ n - W^ H -/Wa^d^A' 

 ideoque .; 



jLdx6n-z.^Jtdx^T,^^^fdxm^j'\^'l^-VoJ^+ etc. ) 

 -/£ W./.v<Jx /W^.v'!J?^j'+^g'4-oS'+ etc. ) 

 fit fldx-^ , erit JtdxSi^^^Bn-J^dlx 

 hincque : 



/£^A'^7r=:z?BRv(n^J+p'A^+q'A'^-fV'^^+etc.) 



-/3B^v(n^>-+p'i^4q'-^^+r'.^^^fetc.) 



Porro ponatur ; £ W^v— /W</^ — ^ , vt fit : 



/gw^x^7Tz^/^.v(nO+PT/+q'A'^+r';j/+ctc.) 

 -j3$^^1n^/+p'-^+qiS^+rT^"4- etc.) 



Tom X.Nou.Comm. K Ex 



