1 / | | ________ | 3 / 2 | x *\/ x - 9 dx | / 0
Integral(x^3*sqrt(x^2 - 9), (x, 0, 1))
TrigSubstitutionRule(theta=_theta, func=3*sec(_theta), rewritten=243*tan(_theta)**2*sec(_theta)**4, substep=ConstantTimesRule(constant=243, other=tan(_theta)**2*sec(_theta)**4, substep=RewriteRule(rewritten=(tan(_theta)**2 + 1)*tan(_theta)**2*sec(_theta)**2, substep=AlternativeRule(alternatives=[URule(u_var=_u, u_func=tan(_theta), constant=1, substep=AddRule(substeps=[PowerRule(base=_u, exp=4, context=_u**4, symbol=_u), PowerRule(base=_u, exp=2, context=_u**2, symbol=_u)], context=_u**4 + _u**2, symbol=_u), context=(tan(_theta)**2 + 1)*tan(_theta)**2*sec(_theta)**2, symbol=_theta), RewriteRule(rewritten=tan(_theta)**4*sec(_theta)**2 + tan(_theta)**2*sec(_theta)**2, substep=AddRule(substeps=[URule(u_var=_u, u_func=tan(_theta), constant=1, substep=PowerRule(base=_u, exp=4, context=_u**4, symbol=_u), context=tan(_theta)**4*sec(_theta)**2, symbol=_theta), URule(u_var=_u, u_func=tan(_theta), constant=1, substep=PowerRule(base=_u, exp=2, context=_u**2, symbol=_u), context=tan(_theta)**2*sec(_theta)**2, symbol=_theta)], context=tan(_theta)**4*sec(_theta)**2 + tan(_theta)**2*sec(_theta)**2, symbol=_theta), context=(tan(_theta)**2 + 1)*tan(_theta)**2*sec(_theta)**2, symbol=_theta), RewriteRule(rewritten=tan(_theta)**4*sec(_theta)**2 + tan(_theta)**2*sec(_theta)**2, substep=AddRule(substeps=[URule(u_var=_u, u_func=tan(_theta), constant=1, substep=PowerRule(base=_u, exp=4, context=_u**4, symbol=_u), context=tan(_theta)**4*sec(_theta)**2, symbol=_theta), URule(u_var=_u, u_func=tan(_theta), constant=1, substep=PowerRule(base=_u, exp=2, context=_u**2, symbol=_u), context=tan(_theta)**2*sec(_theta)**2, symbol=_theta)], context=tan(_theta)**4*sec(_theta)**2 + tan(_theta)**2*sec(_theta)**2, symbol=_theta), context=(tan(_theta)**2 + 1)*tan(_theta)**2*sec(_theta)**2, symbol=_theta)], context=(tan(_theta)**2 + 1)*tan(_theta)**2*sec(_theta)**2, symbol=_theta), context=tan(_theta)**2*sec(_theta)**4, symbol=_theta), context=243*tan(_theta)**2*sec(_theta)**4, symbol=_theta), restriction=(x > -3) & (x < 3), context=x**3*sqrt(x**2 - 9), symbol=x)
Ahora simplificar:
Añadimos la constante de integración:
Respuesta:
/ | | ________ // 5/2 \ | 3 / 2 || 3/2 / 2\ | | x *\/ x - 9 dx = C + |< / 2\ \-9 + x / | | ||3*\-9 + x / + ------------ for And(x > -3, x < 3)| / \\ 5 /
___ 162*I 112*I*\/ 2 ----- - ----------- 5 5
=
___ 162*I 112*I*\/ 2 ----- - ----------- 5 5
162*i/5 - 112*i*sqrt(2)/5
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.