TNTECRALlVM PER FACTORES. 143 



Vel fi angulu9 duobus rcdis aequnlis iz inrroducatur , 

 et ob ^ — gTT pro m fcribatur 27», erit factores euol- 

 Vc do 



(r m)/H-+-m) ( 2 n— ffl )( ^-+-m) (^n-mK^-t-TTQ n. /» m 



r n ' 2 7i • 2 n - • sn. : n ecc . — mw uu ' n ~ 



( n- 2 77iXn - 4-2w) Gn-2m) (^7i-+-?m) ( s n — 2 w)(^;-f-;7n) -~ m 



n. n- ' "" zn". zn • sn . sn. • ClC __»1. n 



Rc- ucendo autem differentias ad vnitatem, erit 



(^«Xi+5 ( .-SX»+") (3-1X3+^) ^_ » ,.„,» _ 



1 . 1 2; . 2 3,- . 3 nnt n 



Idl±___. . (izlli±ll. etc. = cof. 5 i 



Problema 5. 



45. Inuenire fbrmulam integralem ,. cuius vafos 

 cafu #____ praebeat fin. ™ tt. 



Solutio. 



Cum fit 



W7T » I . I 2 . 2 



comparetur hoc productum infinitum cum forma gene* 



rali 



p ___ _f ( 5-f-i yp-^ . ) (6-f.,)(g-}_2) f 



^ — ac' ( a _f- I Xc-+-0 " ( «-f- 2 )(c-»_2) * ClC ' 



cuiu9 valor ante §.41. plunbus modis in fbrmulis in* 

 tegralibus eft exhibitus. v Statui ergo opoitet **___: 1 ; 

 c~i - r bzn-^\ et^-i-f \ : eritque,r_-tf + *■=-'+£- 2 y 

 tum vero 



.f-<7-_»-_:__:-i-}-v; s-a-e-i—-%-\, 



s—tf—c— i— -i-f* i. j. s—6—e— 1 _=— 1 - « • 



Hiac 



