6± DE COMMFNICATIONEJMOTFS 

 tempusculo dt a potentia follicitante p pera&aS, eritqi» 



, - j — pdt. j pdt . m. AC .pdt rc ., 



per (§. 12.). dvzz:-£— \du— v r ; drzzz—^ -(§.13) 



— i2~. Sumtis ergo intcgralibus crit vzzib — * B -- 

 nzz ^\ r — -f— , integrali //)i/ ita accepto vt eua- 

 nefcat pofito t zzz o , hoc eft in ipfo conflictus initio, 

 Hinc ergo obtinebitur Jpdtzz: B {b — <y) zzrAuzz.j 1 , feu 

 B (£-*;)— Au~y'i' q uae proprietas etiam iinito con- 

 fliftu locum habet. 



§. 19. Subftituto loco <// eius valore ^z^-T^ na ~ 

 bcbiturB^zi^— %J£jr\ Adu — - u J^ fr atque ^=3 

 % Jv+ 7F- Hinc formabitur ifta aequatio: 

 a B u d v — a B <y </<y -f- a Bfr //v 



^%kudu-tAvdi€+%kfr4u=(-a+S-\-y)p£ie 



Ponatur azr-A, S==:B, y — ^f^, prodibitque inte- 

 grand0 AB^ A Bu^AB/v» _ ABa7a _ AB /r^+ AB/fg 



— (A+B+^VP^+^j famto fpdx ita vt 

 euanefcat pofito *:^fc, hoc eft in ipfo confliclus initio. 

 Sequentem igitur adepti fumus aequationem v 2 •+• u 2 -\-f 2 

 r *-zvu--ifrv-\-ifruzzzb 2 -\-2. (|-f- l A -*- f {)fpdx % 

 ex qua radicem excrahendo prodit — v-\-u-\-fr 

 zzz V (b* -f- 2 (i +.J + f)Jpdx). Haec ergo 

 aequatio fi cum duabus prioribus inuentis coniungatur, 



prae- 



