•4^.^ ) I- ( ^<- 



Exempkim i. 



§ 20. Si fi^rit 



Pnfito crgo 1' ( <7 -+- * .V .V ) ^ z erit </j' — ^-^ , vndc col- 

 ligitur intcgrando y — -~- — ^ " "-^-^^^ 



Exemplum 2. 



f. 2 1. Si fucrit 



1/ V — __fil.'L_ — <* * ** 



ponendo V {a -h h x x) — z, vr fit 

 jf :*• = 5-?^^ ct **-' - * ^ » 



erit d f— ~^d z (z z ~ a), hincque intcgrando adipifcimur 

 y — ^-j-j^ (z z — :i a)\ vnde f.i(fla rcUitutionc prodibit intc- 

 gralc quaefitum j ^ ~^- V (fl -h ^ .v .v) -h C. 



Excmpliiin ;^. 



§. 22. Si ruerit 



' v;o-f-ix*j- ' "^ « «' » 



hinc pofito 



y(a^,^XJr)-J=::5 ficr^>=:J-;{~r^^--i), 



vndc fumto integrali fict y -=. ^^ Q' '^" ) , quocirca iada 

 rcaitutionc reruliat j' — .^j^_^l^^^~ -\- C. 



Prob'cma 8. 



§. 23. -9/ ///r;/7 X funflio taiiotinl/s bhinriitit quan- 



titalum x" ^; s, exij}rn'c s — V^ (a • i b x"^, formulam dijfc- 

 remialem ^"^-^ od raiionaliiaievi perduceic. 



Solu- 



