LOS METODOS DE INTEGRACION 
( 
2 . 
a \ x a . 
IT" -rr L ( a + bx ) 
x a+b x J* b b(bx-)-a) } b b 
(Peacock, 269) 
3 - / x ^zr =/, (x + 1 + i=r)= yx 2 +*+l(x-d 
4 J x “i+r = i x (x_1+_ 5$r) = y x2 ~ x+2L(x+1) 
- /^=J> 2 + ^) 
x 2 - 2x + 4 L(x + 1) 
6. 
■2x-f-5 f . . . 4 
f x 2 — 2x-f-b / 
L “ = J 
= (X 2 +X— 1 + 
X — 1 
= T Xs+ T x2 ~ x + L ( x_1 ) 
(De Comberousse, IV, 684) 
/. 
x 2 -|-x — 2 
x 2 +2x-3 
x — 2 
x^sT 
x + 3 
= x+ L (x+3)«. 
8 . 
f x3 f 
x 2 ax a 2 
a :5 
jx a + bx Jx 
b _ b 2 + b 3 " - 
b 3 (bx+a) 
x 3 ax 2 a 2 x a 3 T /v , 
— ohi- +-TT--TT L (bx+a) 
3b 2 b 2 ' b 3 b* 
