94 | 
20 — {2x — ac — ab) 9% s 
ZV bbzz — (27 — aa — ab}* 
Quantitas irrationalis in denominatore ad formam ÿ{24-4)(3-22) 
reducitur, ponendo a — au et 8 — (a+ b} = cc. Sta- 
tuatur igitur 
V (zz — a) (B— 27) =(B— 22) u, 
quo 09 rationaliter exprimatur, eritque 
a+ Buu _7 aa—-ccux 
72 — 1 UU 1 uu 
sumtisque differentialibus logarithmicis fiet 
Ô0Z ___  ceuou uOu 
Zz A aa—-cceuu 1 us * 
F bcuu — ab 
Praeterea vero erit 27 — aa — ab — re 
ne L\2 — U(ec— aa) 
V bbzz — (az — aa — ab} = 
quibus valoribus in 09 substitutis emanat forma rationa- 
lis sequens: 
___ ec (bcuu — ab) du (bcuu — 2 - ab) à du 
(ce HY aa) 0D FER. aa —- ccuu ve RESTE 
+ . 
pro qua integranda notetur esse 
bof" — bcfou — bol 
aa a ccuu Es —+ cou 
uuou LL 
bcf= — bLc/ou — bcf 1—+ uu 
unde partes integralis quaesiti erunt 
ccuudu C7 
bc" —bcu—abA tans. à 
aa —- ccuu 
abf — EL — bcA tang. © 
aa —- ceuu 
b cf = beu— be tang. u 
abf —"— abA tang. u 
hincque colligitur 
