■■■ i ' ■' 133 ===== 



fubftituto hoc valore in locum v 9 et fafta debita redu&ione 

 obtinebitur 



3. 



~duy 2 i7// ^\ 



4V 3 -/3 



§. 7. Pari modo elicitur integrale alterius formulae 

 3 



i 1 , polito enim y {1 -\-u 3 ) ~vy 2 prodit 



(i_u 3 )(^(i-hu 3 ) 



3 



fuudu/- *vdv* 



(1 — U J ) /(1 -f-u 3 ) 

 atque evolvendo integrali ipfius V J^ V 3 obtinebitur 



f v dv I / ViT- j-v 4-t> -u) I A +^"0- I-f-S 'Q 



J i_T^3 — 3 * T-~ ~ y- 3 A tan §- -7T~ * 



l 3 



ct reftituto valore ipfius v~ --__ __J oritur 



-! /: . " ^ - _-£//(* W) 



^y (1 — u') / (!+ u') 



+ i^A-l/(iW)] + 7 ^Atang.* + ';^"' , 

 confequenter 



R 3 / 



/ - 



/ 



