itf r>E PROLrCTIS EX INFINITIS 



(i^^) « — "s - Q-' «" « - 



^ ^ ' {i-y^)i 



PfS Y a 



§. 23. Subftituta nunc loco z fuperiore expreffione 

 infinita , fiimtisque poteftatibus exponentis q , prodibit ifta 



aequatlo: il? =^— — • ^-^^'. 



PV'fS^f(l' (/-t-|^)'"' {/-4-|/ 

 (/±£)n_ (/+^^)*' .(/±L^i^l__ etc. 



(/+ '^/''' (7H:"'f%F' (/+ ^'^ ) '"'' 



Si igitur pari modo ponatiir J^ -I— — R , erit 



quae duae exprelTiones in fe mutuo du^fhie dabunt 



^fl^JA-^l^^'' ^f+s) (h-h(f±i^g)'(f-^ ^gi_ 



^'~^ <~f-^ls)\h-\-sf if-h^i^sjU^-i-^sf 



