87 



^'" _ î;-^" — tV -j- ' 



5 



iinde fit t=z - -, et hinc repenetiir J=: =^i=- — . 



aV i-hyy zVi-i-yy 



Cum enim ex prima acquatione sit t^zz;""' — ^, ex 

 altéra vcio — t^zzv' ^^ — v^, hi valoies invicem coae- 

 qnati dabnnt ^-^-■'zzv -hv , unde ob — ^— = 2 K i-hjy 

 eut J cr 



f. 24. Transferamiis deniqtie haec omnia ad ipsam 

 potestntem 14-x, et cam sit i -{- x :=z vv et 



K 1 ~f- 1- V- z^ m: ~7-==, ent 2^1 -\-yy zz: 7f==^. 



quibus viilofibiis snbstitutis fiet : 



-y = ^ >< ((i+xr-^ + (H-a:)^-"), 



X ■ 



sive * /- 



. ( 1 -f- a)" •+ ^ — f I -4- x;i ~ " 



r« X 1/ 



Hinc pro altéra série deducitur ^i=t> 14-Xj ideoque 

 valor sériel erit : 



(i-f-xp-t-i — ( i-j-xy — w 



quae est summa terminorurn ordine parium in série pro 

 potestate (1 -\- xf inventa. 



