Obfervatio in has formulas. 

 §. 43. Hic ii cafus imprimis notatu funt digni, qui- 

 bus n ~ 2 m, propterea quod tum in formolam integralem 

 tantum fignum ]/ quadraticum ingreditur ; hos ergo cafus 

 evolviffe operae erit pretium. Pofito igitur ji __ _ ra liabe-. 

 bitur 



v zzzW [J 2 (i -*- zf m -l(i -zf n ]. 



Ac fi loco ? (/"-+-§) et l(f—g), litteras A et B reftitua- 

 mus, erit formula noftra 



quius integrale, fumtis pz:ii- z et q __ — =__, erit 



*_-A/_ -i + B/P c 



m 



§. 44. Has autem formulas in genere integrare licet. 

 Pro priore enim ponamus q m — t , eritque q m ~ l d q — —■ , 

 ficque pars prior erit 



— -/-___ __ — _ Ar. tang. t ~z — * Ar. tane. q 171 . 



Pio altera forma fi ponamus p m zzzu, erit altera pars 



—■_■/' au — B / ______c 



m 1 1 — u u ' _ m * 1 — p m * 



ficque ipfum integrale erit 



B/i-f-p 7 * A A mr 



— / — __!_ — — Ar. tang. q m , fiue 



_ ra ^ 1 — » m ra ° 



* B ; v ™ _4_ (1 + „)» A A v (1 — *) m 



|> — — / 1 ; - — — Ar. tang. * _ . 



_ra^ v m — (1 -t-z) m m & v m 



Ordo 



