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ESCUELA SUPERIOR POLITCNICA DEL LITORAL 
CLCULO INTEGRAL ING. ROBERTO CASCANTE 
TAREA #1 
LA INTEGRAL INDEFINIDA 
Determine las siguientes integrales: 
INTEGRALES INMEDIATAS 
1.  x   x dx 
4 
2 5 
2. 駕1 x1 2x1 3xdx 
3. dx 
x 
x 
2 
1 
 件 
 
э 
  
4. dx 
x 
a 
x 
a 
x 
a 
   
 
 
  
 
 
  3 
3 
2 
2 
5.  
   
dx 
x 
x x 
4 
3 2 2 1 
6. 
  
  
 
dx 
x x 
x 
3 
3 1 
7.  件 
 
э 
 
 x xdx 
x2 
1 
1 
8.  
 
   
dx 
x 
x x 
4 
2 2 
1 
1 1 
9. dx x 
x x 
 
   
10 
2 5 1 1 
10.   
 
dx 
e 
e 
x 
x 
1 
1 3 
INTEGRACIN POR SUSTITUCIN 
1.   
dx 
x a 
1 
2. 駕 x   dx 10 2 3 
3. 
  
 
 2 
5 
5x 2 
dx 
4.   2 2 3x 
dx 
5.  
3  2 2 x 
dx 
6.   x 
dx 
1 cos 
7.  
 
 
2 1 x 
x dx 
8.  x   x dx 2 3 3 1 
9.  x ln x ln(ln x) 
dx 
10. dx 
senx x 
senx x 
  
 
3 cos 
cos 
11.  
 
 
dx 
a sen x b x 
senx x 
2 2 2 2 cos 
cos
2 
12.  2  4 sen x ctgx 
dx 
13. 
  
 
  2 2 arcsenx 1 x 
dx 
14.  dx 
x 
x x 
  
  
2 
2 
1 
ln 1 
15.   
dx x x 
x x 
9 4 
2 .3 
INTEGRACIN POR PARTES 
1. x  x  dx 
2 
2 2  2  3 
2. 
 x  x dx 10 1 
3.   
dx 
x 
x 
  100 
2 
1 
4. 
 x 1  x 1 
dx 
5.  xdx ln 
6.   xe dx x 
7.  xdx xcos 
8.  xarctgxdx 
9.  x   x dx 2 ln 1 
10. 
  
 
dx 
x 
x 
x 
1 
1 
ln 
11.   
 
 
dx 
x 
earctgx 
2 
3 
2 1 
12. 
 dx 
sen x 
senx 
2 
ln( ) 
13.  dx e x 
14.     
dx 
x 
xex 
2 1 
15. 
 sen(ln x)dx 
INTEGRALES TRIGONOMTRICAS 
1.  dx 5 cos 
2.  sen xdx 6 
3.  sen x xdx 2 4 cos 
4.  sen x xdx 4 5 cos 
5.  dx 
x 
sen x 
4 
3 
cos 
6.  dx 
sen x 
x 
3 
4 cos 
7.  senx x 
dx 
4 cos 
8.  xdx 5 tan
3 
9.  xdx 6 cot 
10.  sen5x cos xdx 
11.  cos x cos 2x cos3xdx 
12. dx 
x 
2 
sec6  
13.  x xdx 3 3 tan sec 
14. tan 2xsec 2xdx 5 2  
INTEGRACIN POR SUSTITUCIN TRIGONOMTRICA 
1. dx 
x 
x 
 
 2 
2 
16 
2.  
 
dx 
x 
x 16 2 
3.   x  x dx 2 7 6 
4. 
  
dx 
x 
 
 2 
3 
2 25 
1 
5. dx 
x 
x 
 
 
4 
2 4 9 
6. dx 
x x 
 
 2 4 
1 
7. dx 
x x 
x 
 
 4  8 2 
8. dx 
x x 
x 
 
 6  5 2 
9. dx 
a x 
a x 
  
 
INTEGRACIN POR DESCOMPOSICIN EN FRACCIONES PARCIALES 
1. dx 
x  1 
1 
2 
2. dx 
x  4  9 
1 
2 
3. dx 
x x    2 
3 
2 
4. dx 
x x 
x 
   
 
2 1 
5 
2 
5. dx 
x x 
x x 
  
  
3 
2 3 7 2 
6. dx 
x x 
x x 
   
  
2 
3 
2 
3 
7. dx 
x x 
x x x 
   
   
2 8 
2 4 15 5 
2 
3 2 
8. dx 
x x x 
x x 
    
  
3 
4 7 
3 2 
2
4 
9. dx 
x x x 
x x 
   
  
3 2 
2 
2 
5 20 6 
10. dx 
x x 
x x 
   
 
4 4 
8 13 
4 2 
3 
11. dx 
sen x senx 
x 
   2 
3cos 
2 
12. 
  
dx 
x x 
x 
 tan tan 1 
sec2 
13.   dx 
e e 
e 
x x 
x 
 1  4 
14.   dx 
e e 
e 
x x 
x 
 1 1 2 
15. dx 
e e e 
dx 
 x x x 
1 2  3  6 
INTEGRACIN POR SUSTITUCIN UNIVERSAL 
1.  2senx  cos x  5 
dx 
2. dx 
senx x 
senx x 
  cos 
cos 
3. 
    x senx 
dx 
2 cos 
4.  x  x 
dx 
cot csc 
5.  sen x  x 
dx 
4 4 cos 
6.  senx  x 
dx 
tan 
7. dx 
senx x 
sen x 
  2cos 
2

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