138 MEMORIAS ClENTiFICAS 1 LITERARIAS 
- H 
x 7 x 7 x— a 7 ax+b 7 f(x) 
v ' /w- dx: 
1 1 
? ~ 2 
1 +x- ' a 1 2 -f-x 2 
VI. dx: ±-~ — , ±-J- 
J 1 — x^ 1 — x 2 a-- 
— x a 7 ^ x* — a 
VII. 
1 , , 1 
dx: ± 
*/ l+x| -s/x ±a 2 
VIII 
■te 
dx: 
=fc ^ 
1 
\/ 2 x-x 2 7 
IX. /e x dx: e nx 7 e ax + b , a x , a nx a x L a 
X. / sen x d x: db sen a x . 
XI. /cos x d x: cos a x 7 tg x, cot x, sec x, cosec x 
XII. / sec 2 x d x : ± sec 2 a x 
_dx 
x i~ 
d x 
x s/ a 2 ±x 5 
cosec 2 x, 
sen x 
cos 2 x 
cos x 
sen 2 x 
1 
sen x cos x 
