(49)== 

 S'=:A+5iB-f-f5C + eD-4-©E-|- etc. 



S^^^^C-t-SlD-f-SBE -|-€F 4-©G-i- etc. 

 etc. etc. 



Solutio. 



— , in praecedente 



/ (i - x'r 



problemate vidimns effe 



J 1 =AA, 



f 



"-^2^-' dx 



b 



z=C A. 



]/(i— ^V 

 etc. etc. 



Cum iam poruerimus 



(i _ x^yv^ = I -f- 21 A-'' + ^ -V*- ^ -f- (T jc' ^ -t- ttc, 



inultiplicemus vtrinque ftiuim per -^ , et integran- 



/ (I — x'f 

 do nancifcemur fequentem formam: 



/ /°^ ~'^'^ =AA-^2iBA-H?SCA + €DA + S)EA-+-etc; 



/(l -.V^jJ^ + a 



quae feries manifeflo efl: = A S^. Hinc ergo concludimus 

 fore 



Noua A&a Acad. Imp. Si. T. VIII, G S^ = 



