10.05.2013 Views

Calculo Una Variable, 11vo Edición – George B.Thomas

Calculo Una Variable, 11vo Edición – George B.Thomas

Calculo Una Variable, 11vo Edición – George B.Thomas

SHOW MORE
SHOW LESS
  • No tags were found...

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

582 Capítulo 8: Técnicas de integración<br />

Solución<br />

EJEMPLO 2 m es par y n es impar<br />

Evaluar<br />

Solución<br />

EJEMPLO 3 m y n son pares<br />

Evaluar<br />

Solución<br />

L sen3 x cos 2 x dx = L sen 2 x cos 2 x sen x dx<br />

= L s1 - u 2 d 2 du<br />

= L s1 - 2u 2 + u 4 d du<br />

= L s1 - cos 2 xd cos 2 x s -d scos xdd<br />

= L s1 - u 2 dsu 2 ds -dud<br />

= L su 4 - u 2 d du<br />

= u5<br />

5<br />

- u3<br />

3<br />

= cos5 x<br />

5<br />

+ C<br />

- cos3 x<br />

3<br />

L cos5 x dx.<br />

L cos5 x dx = L cos 4 x cos x dx = L s1 - sen 2 xd 2 dssen xd<br />

= u - 2<br />

3 u3 + 1<br />

5 u5 + C = sen x - 2<br />

3 sen3 x + 1<br />

5 sen5 x + C.<br />

L sen2 x cos 4 x dx.<br />

+ C.<br />

L sen2 x cos4 1 - cos 2x 1 + cos 2x<br />

x dx = a ba b<br />

L 2<br />

2<br />

2 dx<br />

= 1<br />

8 L s1 - cos 2xds1 + 2 cos 2x + cos 2 2xd dx<br />

= 1<br />

8 L s1 + cos 2x - cos 2 2x - cos 3 2xd dx<br />

= 1 1<br />

Cx +<br />

8 2 sen 2x - L (cos2 2x + cos3 2x) dxD.<br />

u = cos x<br />

m = 0<br />

u = sen x

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!