§. 13. Euoluatur pariter fecundum membrum ac 

 (latuatur B ~ a-" -4- .v" — C, eritque 



C = x"-x''(i-x'}{i~ .V*) -X \ i-x') {i~x*]{i-x')~ etc. 

 Nunc termini euoluantur fecundum fadorem i — x\ fiet- 

 que 



Czzx"-x"{J-x*)~x''(i-x')(i-x')~x'*{i-x'){i-x'^,{i-x') 

 ■^x'\i-xj-^x''{i-x*){i-xj-{-x''(i-x'){i-x'){i-x'') 

 Hinc brnis membris contrahendis fiet 



C-x''+x"'(i-x*) + x'^(i-x')(i-x') 

 + x'*{i-x' ){i-x')(i -x') etc. 



§.14. Euoluto nunc hic iterum fecundo mem- 

 bro ftatuatur C zz. x-'' -f- x'^ — D, eritque 



D—-x'°-x'°{i-x*)(i-x')-x''(i-x*){i-x')(i-x')etc. 



\bi xiuolutio fadoris 1 — x* producet 



t)=x'°-x'°{i-x')-x'\i-x')(i-x')-x''(i~x%i-x')(i~x') 



-{■x'\ i-x')+x"{i -x')(i-x')+x*\ i-x')( 1 -xjl 1 ~X'jGtC, 

 Hinc binis membris contradlis fiet : 



D-x'' + x'°{i-x')+x''(i~x'){i-x') 

 +x'\i~x'){i~x')(i-x') etc. 



§. 15- Euoluto fecundo membro ftatuatur denuo 

 D — x''-\-x*°-E, eritque 



E-x^^-x^^^i^x^^^i-x^^-x^^^i-x')^!-^')^!-^') etc, 

 et euoluto faclore fecundo 1 — x' fiec 



E:=x*'-x*'{i-!xf)~x'°(i~x':(i~x')-x''(i~x')(i~x'){i-x') 

 +x'\i-x')+x'%i-x"Xi~xj+x'\i-x'){i-x')(i-x')etc, 



G 3 binis- 



