^^ ^^ Jarrett on Algebraic Notation. 



Is- 



or ■S'-.v ^^T—j— -{L-l l'+^-s.n = re. 



t: 



Ex. 4. a"' = 1 + S^t 



»« a-M , g (a« -1)' + ' 



\\m- 



'1 \ sr (-ir^ 



'■+1 





-r+1 -s 



Put w- — \ =^u, then a-r = i + „^ a = (i ^uf, 

 and («- D' =.• (IT^" - ly = 5/.. i=^ .(^ (, +,,)«.=Tnr,^ 



I s— 1 



by the binomial theorem, 



by the same theorem, 



'[^ • '*' 7^31- • t_-l^l!jM_^) (Art. 16. and 13.) 



I «— 1 o 



■•"^V •'^''""-jFTrr •t.-(!Li!:±lj:i) (Art. u.) 



.«— 1 i 



(—1)' 



+ ~^-t-\^] (-Art. 11.) 



I 



