1 / | | 3/2 | 3 / 2 \ | x *\x + 1/ dx | / 0
Integral(x^3*(x^2 + 1)^(3/2), (x, 0, 1))
Hay varias maneras de calcular esta integral.
Vuelva a escribir el integrando:
Integramos término a término:
TrigSubstitutionRule(theta=_theta, func=tan(_theta), rewritten=sin(_theta)**5/cos(_theta)**8, substep=RewriteRule(rewritten=(1 - cos(_theta)**2)**2*sin(_theta)/cos(_theta)**8, substep=AlternativeRule(alternatives=[URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=(_u**4 - 2*_u**2 + 1)/_u**8, substep=RewriteRule(rewritten=_u**(-4) - 2/_u**6 + _u**(-8), substep=AddRule(substeps=[PowerRule(base=_u, exp=-4, context=_u**(-4), symbol=_u), ConstantTimesRule(constant=-2, other=_u**(-6), substep=PowerRule(base=_u, exp=-6, context=_u**(-6), symbol=_u), context=-2/_u**6, symbol=_u), PowerRule(base=_u, exp=-8, context=_u**(-8), symbol=_u)], context=_u**(-4) - 2/_u**6 + _u**(-8), symbol=_u), context=(_u**4 - 2*_u**2 + 1)/_u**8, symbol=_u), context=(_u**4 - 2*_u**2 + 1)/_u**8, symbol=_u), context=(1 - cos(_theta)**2)**2*sin(_theta)/cos(_theta)**8, symbol=_theta), RewriteRule(rewritten=(sin(_theta)*cos(_theta)**4 - 2*sin(_theta)*cos(_theta)**2 + sin(_theta))/cos(_theta)**8, substep=AlternativeRule(alternatives=[URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=(_u**4 - 2*_u**2 + 1)/_u**8, substep=RewriteRule(rewritten=_u**(-4) - 2/_u**6 + _u**(-8), substep=AddRule(substeps=[PowerRule(base=_u, exp=-4, context=_u**(-4), symbol=_u), ConstantTimesRule(constant=-2, other=_u**(-6), substep=PowerRule(base=_u, exp=-6, context=_u**(-6), symbol=_u), context=-2/_u**6, symbol=_u), PowerRule(base=_u, exp=-8, context=_u**(-8), symbol=_u)], context=_u**(-4) - 2/_u**6 + _u**(-8), symbol=_u), context=(_u**4 - 2*_u**2 + 1)/_u**8, symbol=_u), context=(_u**4 - 2*_u**2 + 1)/_u**8, symbol=_u), context=(sin(_theta)*cos(_theta)**4 - 2*sin(_theta)*cos(_theta)**2 + sin(_theta))/cos(_theta)**8, symbol=_theta), RewriteRule(rewritten=sin(_theta)/cos(_theta)**4 - 2*sin(_theta)/cos(_theta)**6 + sin(_theta)/cos(_theta)**8, substep=AddRule(substeps=[URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-4), substep=PowerRule(base=_u, exp=-4, context=_u**(-4), symbol=_u), context=_u**(-4), symbol=_u), context=sin(_theta)/cos(_theta)**4, symbol=_theta), ConstantTimesRule(constant=-2, other=sin(_theta)/cos(_theta)**6, substep=URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-6), substep=PowerRule(base=_u, exp=-6, context=_u**(-6), symbol=_u), context=_u**(-6), symbol=_u), context=sin(_theta)/cos(_theta)**6, symbol=_theta), context=-2*sin(_theta)/cos(_theta)**6, symbol=_theta), URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-8), substep=PowerRule(base=_u, exp=-8, context=_u**(-8), symbol=_u), context=_u**(-8), symbol=_u), context=sin(_theta)/cos(_theta)**8, symbol=_theta)], context=sin(_theta)/cos(_theta)**4 - 2*sin(_theta)/cos(_theta)**6 + sin(_theta)/cos(_theta)**8, symbol=_theta), context=(sin(_theta)*cos(_theta)**4 - 2*sin(_theta)*cos(_theta)**2 + sin(_theta))/cos(_theta)**8, symbol=_theta)], context=(sin(_theta)*cos(_theta)**4 - 2*sin(_theta)*cos(_theta)**2 + sin(_theta))/cos(_theta)**8, symbol=_theta), context=(1 - cos(_theta)**2)**2*sin(_theta)/cos(_theta)**8, symbol=_theta), RewriteRule(rewritten=sin(_theta)/cos(_theta)**4 - 2*sin(_theta)/cos(_theta)**6 + sin(_theta)/cos(_theta)**8, substep=AddRule(substeps=[URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-4), substep=PowerRule(base=_u, exp=-4, context=_u**(-4), symbol=_u), context=_u**(-4), symbol=_u), context=sin(_theta)/cos(_theta)**4, symbol=_theta), ConstantTimesRule(constant=-2, other=sin(_theta)/cos(_theta)**6, substep=URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-6), substep=PowerRule(base=_u, exp=-6, context=_u**(-6), symbol=_u), context=_u**(-6), symbol=_u), context=sin(_theta)/cos(_theta)**6, symbol=_theta), context=-2*sin(_theta)/cos(_theta)**6, symbol=_theta), URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-8), substep=PowerRule(base=_u, exp=-8, context=_u**(-8), symbol=_u), context=_u**(-8), symbol=_u), context=sin(_theta)/cos(_theta)**8, symbol=_theta)], context=sin(_theta)/cos(_theta)**4 - 2*sin(_theta)/cos(_theta)**6 + sin(_theta)/cos(_theta)**8, symbol=_theta), context=(1 - cos(_theta)**2)**2*sin(_theta)/cos(_theta)**8, symbol=_theta)], context=(1 - cos(_theta)**2)**2*sin(_theta)/cos(_theta)**8, symbol=_theta), context=sin(_theta)**5/cos(_theta)**8, symbol=_theta), restriction=True, context=x**5*sqrt(x**2 + 1), symbol=x)
TrigSubstitutionRule(theta=_theta, func=tan(_theta), rewritten=sin(_theta)**3/cos(_theta)**6, substep=RewriteRule(rewritten=(1 - cos(_theta)**2)*sin(_theta)/cos(_theta)**6, substep=AlternativeRule(alternatives=[URule(u_var=_u, u_func=cos(_theta), constant=1, substep=RewriteRule(rewritten=_u**(-4) - 1/_u**6, substep=AddRule(substeps=[PowerRule(base=_u, exp=-4, context=_u**(-4), symbol=_u), ConstantTimesRule(constant=-1, other=_u**(-6), substep=PowerRule(base=_u, exp=-6, context=_u**(-6), symbol=_u), context=-1/_u**6, symbol=_u)], context=_u**(-4) - 1/_u**6, symbol=_u), context=(_u**2 - 1)/_u**6, symbol=_u), context=(1 - cos(_theta)**2)*sin(_theta)/cos(_theta)**6, symbol=_theta), RewriteRule(rewritten=-(sin(_theta)*cos(_theta)**2 - sin(_theta))/cos(_theta)**6, substep=ConstantTimesRule(constant=-1, other=(sin(_theta)*cos(_theta)**2 - sin(_theta))/cos(_theta)**6, substep=AlternativeRule(alternatives=[URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=(_u**2 - 1)/_u**6, substep=RewriteRule(rewritten=_u**(-4) - 1/_u**6, substep=AddRule(substeps=[PowerRule(base=_u, exp=-4, context=_u**(-4), symbol=_u), ConstantTimesRule(constant=-1, other=_u**(-6), substep=PowerRule(base=_u, exp=-6, context=_u**(-6), symbol=_u), context=-1/_u**6, symbol=_u)], context=_u**(-4) - 1/_u**6, symbol=_u), context=(_u**2 - 1)/_u**6, symbol=_u), context=(_u**2 - 1)/_u**6, symbol=_u), context=(sin(_theta)*cos(_theta)**2 - sin(_theta))/cos(_theta)**6, symbol=_theta), RewriteRule(rewritten=sin(_theta)/cos(_theta)**4 - sin(_theta)/cos(_theta)**6, substep=AddRule(substeps=[URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-4), substep=PowerRule(base=_u, exp=-4, context=_u**(-4), symbol=_u), context=_u**(-4), symbol=_u), context=sin(_theta)/cos(_theta)**4, symbol=_theta), ConstantTimesRule(constant=-1, other=sin(_theta)/cos(_theta)**6, substep=URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-6), substep=PowerRule(base=_u, exp=-6, context=_u**(-6), symbol=_u), context=_u**(-6), symbol=_u), context=sin(_theta)/cos(_theta)**6, symbol=_theta), context=-sin(_theta)/cos(_theta)**6, symbol=_theta)], context=sin(_theta)/cos(_theta)**4 - sin(_theta)/cos(_theta)**6, symbol=_theta), context=(sin(_theta)*cos(_theta)**2 - sin(_theta))/cos(_theta)**6, symbol=_theta)], context=(sin(_theta)*cos(_theta)**2 - sin(_theta))/cos(_theta)**6, symbol=_theta), context=-(sin(_theta)*cos(_theta)**2 - sin(_theta))/cos(_theta)**6, symbol=_theta), context=(1 - cos(_theta)**2)*sin(_theta)/cos(_theta)**6, symbol=_theta), RewriteRule(rewritten=-sin(_theta)/cos(_theta)**4 + sin(_theta)/cos(_theta)**6, substep=AddRule(substeps=[ConstantTimesRule(constant=-1, other=sin(_theta)/cos(_theta)**4, substep=URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-4), substep=PowerRule(base=_u, exp=-4, context=_u**(-4), symbol=_u), context=_u**(-4), symbol=_u), context=sin(_theta)/cos(_theta)**4, symbol=_theta), context=-sin(_theta)/cos(_theta)**4, symbol=_theta), URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-6), substep=PowerRule(base=_u, exp=-6, context=_u**(-6), symbol=_u), context=_u**(-6), symbol=_u), context=sin(_theta)/cos(_theta)**6, symbol=_theta)], context=-sin(_theta)/cos(_theta)**4 + sin(_theta)/cos(_theta)**6, symbol=_theta), context=(1 - cos(_theta)**2)*sin(_theta)/cos(_theta)**6, symbol=_theta)], context=(1 - cos(_theta)**2)*sin(_theta)/cos(_theta)**6, symbol=_theta), context=sin(_theta)**3/cos(_theta)**6, symbol=_theta), restriction=True, context=x**3*sqrt(x**2 + 1), symbol=x)
El resultado es:
Vuelva a escribir el integrando:
Integramos término a término:
TrigSubstitutionRule(theta=_theta, func=tan(_theta), rewritten=sin(_theta)**5/cos(_theta)**8, substep=RewriteRule(rewritten=(1 - cos(_theta)**2)**2*sin(_theta)/cos(_theta)**8, substep=AlternativeRule(alternatives=[URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=(_u**4 - 2*_u**2 + 1)/_u**8, substep=RewriteRule(rewritten=_u**(-4) - 2/_u**6 + _u**(-8), substep=AddRule(substeps=[PowerRule(base=_u, exp=-4, context=_u**(-4), symbol=_u), ConstantTimesRule(constant=-2, other=_u**(-6), substep=PowerRule(base=_u, exp=-6, context=_u**(-6), symbol=_u), context=-2/_u**6, symbol=_u), PowerRule(base=_u, exp=-8, context=_u**(-8), symbol=_u)], context=_u**(-4) - 2/_u**6 + _u**(-8), symbol=_u), context=(_u**4 - 2*_u**2 + 1)/_u**8, symbol=_u), context=(_u**4 - 2*_u**2 + 1)/_u**8, symbol=_u), context=(1 - cos(_theta)**2)**2*sin(_theta)/cos(_theta)**8, symbol=_theta), RewriteRule(rewritten=(sin(_theta)*cos(_theta)**4 - 2*sin(_theta)*cos(_theta)**2 + sin(_theta))/cos(_theta)**8, substep=AlternativeRule(alternatives=[URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=(_u**4 - 2*_u**2 + 1)/_u**8, substep=RewriteRule(rewritten=_u**(-4) - 2/_u**6 + _u**(-8), substep=AddRule(substeps=[PowerRule(base=_u, exp=-4, context=_u**(-4), symbol=_u), ConstantTimesRule(constant=-2, other=_u**(-6), substep=PowerRule(base=_u, exp=-6, context=_u**(-6), symbol=_u), context=-2/_u**6, symbol=_u), PowerRule(base=_u, exp=-8, context=_u**(-8), symbol=_u)], context=_u**(-4) - 2/_u**6 + _u**(-8), symbol=_u), context=(_u**4 - 2*_u**2 + 1)/_u**8, symbol=_u), context=(_u**4 - 2*_u**2 + 1)/_u**8, symbol=_u), context=(sin(_theta)*cos(_theta)**4 - 2*sin(_theta)*cos(_theta)**2 + sin(_theta))/cos(_theta)**8, symbol=_theta), RewriteRule(rewritten=sin(_theta)/cos(_theta)**4 - 2*sin(_theta)/cos(_theta)**6 + sin(_theta)/cos(_theta)**8, substep=AddRule(substeps=[URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-4), substep=PowerRule(base=_u, exp=-4, context=_u**(-4), symbol=_u), context=_u**(-4), symbol=_u), context=sin(_theta)/cos(_theta)**4, symbol=_theta), ConstantTimesRule(constant=-2, other=sin(_theta)/cos(_theta)**6, substep=URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-6), substep=PowerRule(base=_u, exp=-6, context=_u**(-6), symbol=_u), context=_u**(-6), symbol=_u), context=sin(_theta)/cos(_theta)**6, symbol=_theta), context=-2*sin(_theta)/cos(_theta)**6, symbol=_theta), URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-8), substep=PowerRule(base=_u, exp=-8, context=_u**(-8), symbol=_u), context=_u**(-8), symbol=_u), context=sin(_theta)/cos(_theta)**8, symbol=_theta)], context=sin(_theta)/cos(_theta)**4 - 2*sin(_theta)/cos(_theta)**6 + sin(_theta)/cos(_theta)**8, symbol=_theta), context=(sin(_theta)*cos(_theta)**4 - 2*sin(_theta)*cos(_theta)**2 + sin(_theta))/cos(_theta)**8, symbol=_theta)], context=(sin(_theta)*cos(_theta)**4 - 2*sin(_theta)*cos(_theta)**2 + sin(_theta))/cos(_theta)**8, symbol=_theta), context=(1 - cos(_theta)**2)**2*sin(_theta)/cos(_theta)**8, symbol=_theta), RewriteRule(rewritten=sin(_theta)/cos(_theta)**4 - 2*sin(_theta)/cos(_theta)**6 + sin(_theta)/cos(_theta)**8, substep=AddRule(substeps=[URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-4), substep=PowerRule(base=_u, exp=-4, context=_u**(-4), symbol=_u), context=_u**(-4), symbol=_u), context=sin(_theta)/cos(_theta)**4, symbol=_theta), ConstantTimesRule(constant=-2, other=sin(_theta)/cos(_theta)**6, substep=URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-6), substep=PowerRule(base=_u, exp=-6, context=_u**(-6), symbol=_u), context=_u**(-6), symbol=_u), context=sin(_theta)/cos(_theta)**6, symbol=_theta), context=-2*sin(_theta)/cos(_theta)**6, symbol=_theta), URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-8), substep=PowerRule(base=_u, exp=-8, context=_u**(-8), symbol=_u), context=_u**(-8), symbol=_u), context=sin(_theta)/cos(_theta)**8, symbol=_theta)], context=sin(_theta)/cos(_theta)**4 - 2*sin(_theta)/cos(_theta)**6 + sin(_theta)/cos(_theta)**8, symbol=_theta), context=(1 - cos(_theta)**2)**2*sin(_theta)/cos(_theta)**8, symbol=_theta)], context=(1 - cos(_theta)**2)**2*sin(_theta)/cos(_theta)**8, symbol=_theta), context=sin(_theta)**5/cos(_theta)**8, symbol=_theta), restriction=True, context=x**5*sqrt(x**2 + 1), symbol=x)
TrigSubstitutionRule(theta=_theta, func=tan(_theta), rewritten=sin(_theta)**3/cos(_theta)**6, substep=RewriteRule(rewritten=(1 - cos(_theta)**2)*sin(_theta)/cos(_theta)**6, substep=AlternativeRule(alternatives=[URule(u_var=_u, u_func=cos(_theta), constant=1, substep=RewriteRule(rewritten=_u**(-4) - 1/_u**6, substep=AddRule(substeps=[PowerRule(base=_u, exp=-4, context=_u**(-4), symbol=_u), ConstantTimesRule(constant=-1, other=_u**(-6), substep=PowerRule(base=_u, exp=-6, context=_u**(-6), symbol=_u), context=-1/_u**6, symbol=_u)], context=_u**(-4) - 1/_u**6, symbol=_u), context=(_u**2 - 1)/_u**6, symbol=_u), context=(1 - cos(_theta)**2)*sin(_theta)/cos(_theta)**6, symbol=_theta), RewriteRule(rewritten=-(sin(_theta)*cos(_theta)**2 - sin(_theta))/cos(_theta)**6, substep=ConstantTimesRule(constant=-1, other=(sin(_theta)*cos(_theta)**2 - sin(_theta))/cos(_theta)**6, substep=AlternativeRule(alternatives=[URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=(_u**2 - 1)/_u**6, substep=RewriteRule(rewritten=_u**(-4) - 1/_u**6, substep=AddRule(substeps=[PowerRule(base=_u, exp=-4, context=_u**(-4), symbol=_u), ConstantTimesRule(constant=-1, other=_u**(-6), substep=PowerRule(base=_u, exp=-6, context=_u**(-6), symbol=_u), context=-1/_u**6, symbol=_u)], context=_u**(-4) - 1/_u**6, symbol=_u), context=(_u**2 - 1)/_u**6, symbol=_u), context=(_u**2 - 1)/_u**6, symbol=_u), context=(sin(_theta)*cos(_theta)**2 - sin(_theta))/cos(_theta)**6, symbol=_theta), RewriteRule(rewritten=sin(_theta)/cos(_theta)**4 - sin(_theta)/cos(_theta)**6, substep=AddRule(substeps=[URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-4), substep=PowerRule(base=_u, exp=-4, context=_u**(-4), symbol=_u), context=_u**(-4), symbol=_u), context=sin(_theta)/cos(_theta)**4, symbol=_theta), ConstantTimesRule(constant=-1, other=sin(_theta)/cos(_theta)**6, substep=URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-6), substep=PowerRule(base=_u, exp=-6, context=_u**(-6), symbol=_u), context=_u**(-6), symbol=_u), context=sin(_theta)/cos(_theta)**6, symbol=_theta), context=-sin(_theta)/cos(_theta)**6, symbol=_theta)], context=sin(_theta)/cos(_theta)**4 - sin(_theta)/cos(_theta)**6, symbol=_theta), context=(sin(_theta)*cos(_theta)**2 - sin(_theta))/cos(_theta)**6, symbol=_theta)], context=(sin(_theta)*cos(_theta)**2 - sin(_theta))/cos(_theta)**6, symbol=_theta), context=-(sin(_theta)*cos(_theta)**2 - sin(_theta))/cos(_theta)**6, symbol=_theta), context=(1 - cos(_theta)**2)*sin(_theta)/cos(_theta)**6, symbol=_theta), RewriteRule(rewritten=-sin(_theta)/cos(_theta)**4 + sin(_theta)/cos(_theta)**6, substep=AddRule(substeps=[ConstantTimesRule(constant=-1, other=sin(_theta)/cos(_theta)**4, substep=URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-4), substep=PowerRule(base=_u, exp=-4, context=_u**(-4), symbol=_u), context=_u**(-4), symbol=_u), context=sin(_theta)/cos(_theta)**4, symbol=_theta), context=-sin(_theta)/cos(_theta)**4, symbol=_theta), URule(u_var=_u, u_func=cos(_theta), constant=-1, substep=ConstantTimesRule(constant=-1, other=_u**(-6), substep=PowerRule(base=_u, exp=-6, context=_u**(-6), symbol=_u), context=_u**(-6), symbol=_u), context=sin(_theta)/cos(_theta)**6, symbol=_theta)], context=-sin(_theta)/cos(_theta)**4 + sin(_theta)/cos(_theta)**6, symbol=_theta), context=(1 - cos(_theta)**2)*sin(_theta)/cos(_theta)**6, symbol=_theta)], context=(1 - cos(_theta)**2)*sin(_theta)/cos(_theta)**6, symbol=_theta), context=sin(_theta)**3/cos(_theta)**6, symbol=_theta), restriction=True, context=x**3*sqrt(x**2 + 1), symbol=x)
El resultado es:
Ahora simplificar:
Añadimos la constante de integración:
Respuesta:
/ | 5/2 7/2 | 3/2 / 2\ / 2\ | 3 / 2 \ \1 + x / \1 + x / | x *\x + 1/ dx = C - ----------- + ----------- | 5 7 /
___ 2 12*\/ 2 -- + -------- 35 35
=
___ 2 12*\/ 2 -- + -------- 35 35
2/35 + 12*sqrt(2)/35
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.