[ 22 ] 
m 
But, fince u~ i -j- * we have /i=«xxi + - 5 
a 9 a ' 
— -T 
and therefore 
u 
u 
mx * 
— * 1 + - 1 
7)1 X 
a 
1 ! — - — ~ + -7 &c. bv Divifion. 
a a z a* a* J 
x . x z 
a 3 ‘ 
And in the fame manner it appears, that 
W 
VJ 
xx, , 
t i+j &c - &c - 
Hence, our equation, by fubrtituting thefe values, 
becomes 
A 
A 
m 
a 
n 
b 
nix 
a z 
mx 2 
MX- 
+ •" tn, j 
frc. 
x X \ " ^ n x 
b x b> b\ 
a\ 
3 
&c. 
&e . 
c c c* c\ 
&c. &c. &c. &c. 
Put P = — + ? f &c. 
abed 
71 
^ a x + b x ^ c z + d z & C ' 
d> & 
a 
&c. 
Then it will be 
&c. 
7 ^ = x x + Rx z — Sx s 4- Xz* — Kx 5 &c. 
Aflume 
