LOS METODOS DE INTEGRACION 60 1 
Ejercicios 
I /(l+x).dx = /(14-x)d(l+x) = ^(l+xr- 
ii. / (a+bx)bdx = /(a+bx) d(a+b-x) = (a+bx)^ ‘ 
iii. j = f (a — x) ( — dx) = / (a — x) d(a — x) = (a — x) 
iv. dy = (l-l-x2)2xdx.*.y = / (l+x*-^) ^dQl-l-x^) = -^(l+x2) 
^ f (x) = f (a X — b)2 a d X = (a x— b) 
vi. /(3x^ — 2x)'*^ (6x— 2) dx = ^(3x^ — 2x)- 
vii. / (a+bx-f-cx2;"(b-(-2 c x) dx 
(a+b x+cx 
3^ n + 1 
n+b' • 
__i_ 2 -L- ■ 
viii. /x v/ a-t-x = / (a+x) » d (a+x) = -^(a+x) - : 
ix. /x \/ ax'*— bx*> (2ax— 2bx^ = (ax^— bx^)~ 
o 
/ (ax«i-|-b.x") q (maxn - i+nbx” - 1) dx = 
^ : p+q 
■ q (ax “ +bx“) q 
I 
