vnde deducitur fequens Theorama 2. 



Si fuerit /V ^ x = 7, fiim. fcmper erit 

 • fdx(ll) = (lj),fiue 



Sx(f^) = d.(li)- 



J. 7. Progrediamur autem vlterius, et differentiale 

 ipfius V, ex fola variabilitate ipfius p oriundum, contem- 

 plemur, ac reperiemus 



(Ii) = & - P (a^) -^ "J (IF) -^ -■ (3^) -^ ^tc. 



Hinc iam li ponamus (||)=zT, erit 



(l^) = (11) ^ p (U)-^q (II) -^rdl) -V etc. + (||), 



vnde ergo fequitur fore 



ax(|^) = 3T-i-3x(||), 



quod nobis fuppeditat iftud Theorema 3. 



Sl fuerit /V 3 x =r Z , titm etiaw femper erib 

 /3^(||) = (||)-^-P«(B)'/'»« 



a=^(li) -a^(||) = 5. (||). 



J. 8^ Sumta nunc fola quantitate q pro variabili 

 iimili modo orietur 



L 3 vnde 



