§. 2 2. Si igitur in aequadone' 

 Tr -±S~fT dt^arm.ct-i-b cof. c t ) 

 loco T ec S valorcs modo affignati fubftituantur , fiet 



^^ ^ r + C + ( 2 w — X ) f ^ ' s —fe^ ^ dt{a{ir\.ct-\-b cof. c t) 

 feu introduda variabiii sr , ob r = ^^, haec aequatio eint 

 //s 4- C ^"^^^^ 4- (2 ;» - A) 2 ^r :r e~^dtfe^' dt{a fin. f f + ^ cof. i-r) 

 quae per ^C^m-xj/ multiplicattt denuo fic integrabilis. Erit 

 enim partis finiftrac 



integrale 



_. ^f iTO— .A)f ^ _. Q ^Czm — iX)f ,. 



ita vt adieda noua conllante Ct 



g(tm-\]t ^ ^ Q ^«n^2\]t ^ D -J-^irm-rX^t ^^^^Xf ^ ; ^^ f^n ^ ^_j.^ COf. ^ /). 



Cum autem pro littera X duos inueniflemus valores, quo-' 

 nim alter fit X, alter vero X' y erit zm — Kzz.Wy et ac- 

 quatio integralis hinc fiet 



e^^^^z-^rCe^^^-^^^^-^-D^zfe^^^-^^^dtfe^^dtiarm.cr-^^cor.ct)' 

 fiue per notam redudionem' : /P d Q_rz? Q_ — /Q d? eriC 

 ^''Z'iCe^'-^^'-\-D-^^e'^'-^^'fe'^' dtiafm.ct-^-bcoC.ct) 



— ~^fe^'' d t (a fin. c t -^ b coC. c t) 



vnde mutatis confiantibus fadaque diuifione per e^'^ erit 

 denique 



z — Ae-^f^A^r^^^-i-^^e-^^^fe^^^dt^aCxn.ct-^-bcoCct) 



— ^ r^' ' A'''^ dtiafm.ct + bcof.ct). 



§. 23, lam vera cum ope lemmatis modo memo- 

 rati habeatur 



r ^, , . e^^cor.ct X ,. 

 fe^^dtfmct— 4- - fe^' dtcof.ct ct 



•^ c c 



N 3 A*' 



