GEMINA METHODVS 



INVESTIGANDI VALOREM PRODVCTI 



x"-' d X jf«-' dx 



fn ^ fir 



DVM AMBO INTEGRAUA A TERMINO jr = o 

 VSQVE AD TERMINVM x—z EXTENDVNTVR. 



Audlore 

 NICOLAO FFSS. 



D 



Prior Methodus, 



§• I. 



e/ignetur proporitiim binorunt integralium produdlum, 

 compendii gratia, littera Sy vt fit 



.V" - ' </ jr x"-' dx rab j»- = o-| 



y^i-AT"]* y(, _^'«jP LadJ:_iJ 



(modus, terminos integrationis notandi , hic adhibitus, nul- 

 la explicatione indigebit) , eritque difierentiando 



fl o _ -^ J -^ -f— -^ / ^^ j 



i/{i-x'')^ y(i_;»:«)^ y (, _^'')P y(i_;^n^6 



tbi iam id commodi fumus adcpti, vt in huius exprerti- 



onis 



