Integral de xsin^3x dx
Solución
Respuesta (Indefinida)
[src]
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| 3 3 2
| 3 7*sin (x) 2*x*cos (x) 2*cos (x)*sin(x) 2
| x*sin (x) dx = C + --------- - ----------- + ---------------- - x*sin (x)*cos(x)
| 9 3 3
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$$\int x \sin^{3}{\left(x \right)}\, dx = C - x \sin^{2}{\left(x \right)} \cos{\left(x \right)} - \frac{2 x \cos^{3}{\left(x \right)}}{3} + \frac{7 \sin^{3}{\left(x \right)}}{9} + \frac{2 \sin{\left(x \right)} \cos^{2}{\left(x \right)}}{3}$$
3 3 2
4*cos (2) 7*sin (2) 2 2*cos (2)*sin(2)
- --------- + --------- - 2*sin (2)*cos(2) + ----------------
3 9 3
$$- \frac{4 \cos^{3}{\left(2 \right)}}{3} + \frac{2 \sin{\left(2 \right)} \cos^{2}{\left(2 \right)}}{3} + \frac{7 \sin^{3}{\left(2 \right)}}{9} - 2 \sin^{2}{\left(2 \right)} \cos{\left(2 \right)}$$
=
3 3 2
4*cos (2) 7*sin (2) 2 2*cos (2)*sin(2)
- --------- + --------- - 2*sin (2)*cos(2) + ----------------
3 9 3
$$- \frac{4 \cos^{3}{\left(2 \right)}}{3} + \frac{2 \sin{\left(2 \right)} \cos^{2}{\left(2 \right)}}{3} + \frac{7 \sin^{3}{\left(2 \right)}}{9} - 2 \sin^{2}{\left(2 \right)} \cos{\left(2 \right)}$$
-4*cos(2)^3/3 + 7*sin(2)^3/9 - 2*sin(2)^2*cos(2) + 2*cos(2)^2*sin(2)/3
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.