x:%o EVOLVTIO FORMVXA^ 



S c h o 1 i o a. 



4^. Si valprem formulae integralis /<fx(/^)*^ 

 lioc figno [X] repraelentemus , calus haclenus :e.uolU" 

 ti pracbent : 



[-n=Vi.«=r.;^,;[ + n-^V5.a=e^m 

 vnde binis , cjuarmn -indices fimul fumti fiuat — ,9 

 CQniurigendis cotlig^imus. 



[+■,].[--;]= «==ji^rr 

 [+.].[-n = is=7f£T:„ 



[+n.[-n = 3«=jTi^^ 



[+t].:[-;]=4»=7ii^.r 



Ex nniecedcntc autcm ptoblcmate fimili modo de- 

 ^ducimus : 



[-n = r-y4' V-^^' t-^-n-i^^^^Y.AA 



•.(^n-Q.= i/4.aae.,rxvun-;V'4.««<^f^ 



hlnc- 



