== (193) r 



dir.int has. binns acqimtionc? : 



2i a X cof. 5 H- 5r a' X' cof. Z' = o 



5S a X cof. d -h 5B' cf/ >/ cof. o — o 

 cx qiurum priorc fit cof. 3' rr — ?JL^_? , cx aItcr.T vero 

 coC5' = — y^"/:^, quibus intcr ("e acquatis liacc prodit 

 .aequatio : ^!^ = ^^^ , fiuc -J cof. ^ =z 3^ cof. J. R{\ vcro 

 -^- = ^=-* ct |; = i:=i^, vnde nunitcdum eli ftatui non 

 poOc > = ^ , quoniam tum fieri dcbcrct k' = k ., lioc cft 

 y ^^JL±1 — 'lE - o , fiuc n - -±-«4- . Cum autcm fit ;/ - * ^ •« 

 fcmper erit « >• i , vndc ncceliario efic dcbet — ilA_ v. j j^^^ 

 cft {a — by<^o^ quod cum ficri nequeat, ftatuendum ell cof.(T=o, 

 ideoque 5 =:= "7, vndc fit cof. V iz; o, ideoquc ct o'' :zi 1, ita vt 

 pro ftatu initiali propofito fit 



/ = -1 = 91 a -+- ?K ct'; 



y\ — ^=-^ = ^ a -f- ^-^ c'/. 



§. 12. Ponamus autcm 

 5Ia = e(/: — /^); ^ a' = (1^ (^ — /-) 

 critquc '^ 'j. =. '^ a \ '^^ a! z=.^' a^ idcoque 



. "^^ zz: (^ a -h <Z' a. 



Tk pof^criorc harum acquationum fit Qi'z=:'l-,^ — (l , qno 

 Vilorc in priore fubllituto prodit 



-1, — G (/: — b) -j- ^JLr:±lJ^±] — (T (kZ—b) fiuc 

 4 =z g (;^ — T) _|_(^>--rf M fc--6 ) ,„je fit 

 A'<///J .yc7a jica</. If/ip. Sc. T. I. li b (I — 



