QUADRATURE of the CONIC SECTIONS, &c. 
x +1 % —TI 
x—+r I 
pes + 2 : 
2 7 
2(x —TI) K --I 
= = 2 
x +1 x’ +o x —T 
x I 
2 re 4 R gee ; 
2 (x —1) 4(«* —1) ae oe 
= Ls os 
x +r % der x 
nal, I 
3. Me: ¥ fg R 
4a(@ +3) 8 (* =) wie 
= Z = 
ee fare naan. 
si I 
u a a + 16 2 3 
6 
8 (« +1) 16 («224 wd 
a z z 
2 (x" + 1) x +r ice evar) 
et I 
2 Fr x rte : 
m (x —1) m (x — 1) x +d 
327 
Ler the fum of thefe equations be now taken, and the 
quantities found on both fides of the refult rejected, then, af- 
ter 
