30 MFTH. IKTEC. FORM DIFFEREXT. RATIOK. 



Atque intcgnilis qir.icfiti mcmbrnm cx tlnflorc hoc (i+Z^.v)* 



oriiindiim crit : 



_$__,< V r^__, S_ J V r At _■ j>, Y /- dr 



i.:dp»«"- p y i-|-fx~T-7dp-"- p5 7 (.-(-pA) --"+-/'• pi y (.-j-pjc)' 



len 



■• t) 



/(x.^p^)_^^. ^- _v 



..TTp • ' Tdp -+-P* f"' ■ '^'-+-P-'l» 



§. 2(5. Habc:U dcnomin-.uor formuhc dilfcrcntialis 

 propo(it;ic qnatuor tacflorcs fimpliccs intcr lc acqualcs , it;i 

 \t (i-4-p.v)* fit eius diiiifor , tum cx toto iioc fi(florc 

 qu;icratur intcgr;ilis pars 



\bi cocfficicntcs ^ , O- , iK , ct (o Iit>c modo dctcrmi- 

 mbuntur. l)iuid;itur dcni)min;Uor propofitus i-f-a.v-|-^ 

 .v'-f-Y.v'+ctc. pcr (i-i-/).v)* fitquc quotus I -h .V 

 ^.v'-i-Cv'-i- ctc. Tum p()n;uur 



A-;,B-}--.C-; .'D-i:-_etc. _ ^ 



j,x-^*0-+-psb-p*CH- ctc. 

 Atquc cx hoc ipfius V valore cognito crit 

 01 _ _f-_ 4IV. 



^ = 7:^'^ 



,1 V 



p 



Hinc intcgralis mcmbmm cx ficlorc (i-+-/>.v)* oriundum erit: 



j. ,j V /• djc _ ^ J j-- X. /"—^r 



p j V , dx V_ f <ix 



-+■ fdp "• pf J (.-^P*)' "T" r- P* J ^'-hP*)* ' 



