290 



/AW = A, i") + A ,W-\-A 3 W + 8fc., 



" 2.3... A» ' 2.3... Au' 



25( 



2.5... Ah" " ' 2.3.. .An'' 



X 2 P. '' " XS/'/-^- X&c. 



ii'-if.n"+H"'-\-&.c.=n. 



\B+Afx-^A;'x''-\-&cc.+A./x+A,"x'+&c. 



+il ,'x-\-A3"x'-\-&c . = M-\-B'x-\-B"x'-\-Síc., 



26/fíW = 2(-l)"xm(m + l)...(m+«-l)X-^^— ;XSP.^ 



\ ^ ^ 2.3.. .Aíi' 



xsp.^í xSi».-^:^ x&c. 



2.3... A«" 2. 3.. .A/i'" 



