= (52) = 



Scholion. 



Forrr.ulae aiitem i(be feqiicnti modo ruccindiiis exhi- 

 beri pofrunt, ad quas intellii^endas notetur in formulis ad fi- 

 nirtram pofitis valores iniegralium eflTe extendendas ab jr — o 

 ad jr — I , in formulis autcm ad dextram pofitis quantitatem 

 p fpecf.ari vt variabilem ct integralia ita capi,vt euanefcant po- 

 fito p — o; tum vcro loco ? hic littcram ^ fcribi, ita vt ^ 

 fit chara(fier anguli redi. His igitur praenotatis ex integrali 

 priori : 



x^ -f- x~^ dx P r P ? 

 . — iz: i- fcc. '—1 , 



x^ -f- x~ "^ X n 11 



I 



per differentiationcm fequentia deducuntur : 



J x" -j- X- " X 71 dp n 



II. ["'-^^''j^JLQxf^J^^-d.kc.U, 

 J x" -\- X-' X »3p" n 



III. ("l^iiil. ?f (/ xf = _i- 3' . fcc. n , 



IV. /■•y!±iC! .^-I(lxy = ^d'. fec. ti , 

 J -v"-i- .V—" AT n dp* n 



per integrationem vero fcquentes acqualitates oriuntur: 



1. / ~ ~ f^P fec. ^, 



y jf" -I- jr~" .V 1 X n n 



,f_,_,,-f a.v _e^-,^^3^ |.^^pj^ 



Jf"-H -v-r" A-(/.v/ « f 



III. /- -v^-.v ' --Pj\j^^i_ppf2^pf^p Ccc.tl^ 



IV. 



