[ 55 & ] 
m 
1 + + 
I -? + ?~?+’ &e - “*• 
&c. &c. 
» • x 
Multiplying the lafl: equation in art. 3. by and 
taking the corred fluents, we have 
T II Y z V~ X A-— 3 
F = 2 P + zbX — *-• — — —r, &c. 
2 Z 
X 
From whence, by multiplying by and taking 
•V 
the fluents, we get 
F = 2PX + £X 2 ' 
X 3 , T , *- 
\- x- 1 + —5 
2.3 2 3 
+ =rr. ®c. 
X 
Again, multiplying the lafl: equation by -, and 
taking the corred fluents, we find 
1 U 
F=aP+PX z fl 
bX 3 X + 
-.—3 
— x 
-1 
&c. 
3 2.3.4 2* 3 
And, by proceeding in the fame manner, we find 
lv 
F=2 p X+ ™V x ‘ Xi 
&c. 
3.4 2.34.5 
tX-'-Y 
— r~ d r-j &C. 
2 5 1 3 s 
6. 
A 1 * X 3 
Now, it is obvious, that x -\ — - fl — &c, the 
2 3 
» 11 
'value of F in art. 2 . muft be equal to 2 P 2 
