3.484 \(\int x^3 \sin ^3(x) \, dx\)

Optimal. Leaf size=73 \[ -\frac {2}{3} x^3 \cos (x)-\frac {1}{3} x^3 \sin ^2(x) \cos (x)+\frac {1}{3} x^2 \sin ^3(x)+2 x^2 \sin (x)-\frac {2 \sin ^3(x)}{27}-\frac {40 \sin (x)}{9}+\frac {40}{9} x \cos (x)+\frac {2}{9} x \sin ^2(x) \cos (x) \]

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Rubi [A]  time = 0.08, antiderivative size = 73, normalized size of antiderivative = 1.00, number of steps used = 8, number of rules used = 4, integrand size = 8, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.500, Rules used = {3311, 3296, 2637, 3310} \[ \frac {1}{3} x^2 \sin ^3(x)+2 x^2 \sin (x)-\frac {2}{3} x^3 \cos (x)-\frac {1}{3} x^3 \sin ^2(x) \cos (x)-\frac {2 \sin ^3(x)}{27}-\frac {40 \sin (x)}{9}+\frac {40}{9} x \cos (x)+\frac {2}{9} x \sin ^2(x) \cos (x) \]

Antiderivative was successfully verified.

[In]

Int[x^3*Sin[x]^3,x]

[Out]

(40*x*Cos[x])/9 - (2*x^3*Cos[x])/3 - (40*Sin[x])/9 + 2*x^2*Sin[x] + (2*x*Cos[x]*Sin[x]^2)/9 - (x^3*Cos[x]*Sin[
x]^2)/3 - (2*Sin[x]^3)/27 + (x^2*Sin[x]^3)/3

Rule 2637

Int[sin[Pi/2 + (c_.) + (d_.)*(x_)], x_Symbol] :> Simp[Sin[c + d*x]/d, x] /; FreeQ[{c, d}, x]

Rule 3296

Int[((c_.) + (d_.)*(x_))^(m_.)*sin[(e_.) + (f_.)*(x_)], x_Symbol] :> -Simp[((c + d*x)^m*Cos[e + f*x])/f, x] +
Dist[(d*m)/f, Int[(c + d*x)^(m - 1)*Cos[e + f*x], x], x] /; FreeQ[{c, d, e, f}, x] && GtQ[m, 0]

Rule 3310

Int[((c_.) + (d_.)*(x_))*((b_.)*sin[(e_.) + (f_.)*(x_)])^(n_), x_Symbol] :> Simp[(d*(b*Sin[e + f*x])^n)/(f^2*n
^2), x] + (Dist[(b^2*(n - 1))/n, Int[(c + d*x)*(b*Sin[e + f*x])^(n - 2), x], x] - Simp[(b*(c + d*x)*Cos[e + f*
x]*(b*Sin[e + f*x])^(n - 1))/(f*n), x]) /; FreeQ[{b, c, d, e, f}, x] && GtQ[n, 1]

Rule 3311

Int[((c_.) + (d_.)*(x_))^(m_)*((b_.)*sin[(e_.) + (f_.)*(x_)])^(n_), x_Symbol] :> Simp[(d*m*(c + d*x)^(m - 1)*(
b*Sin[e + f*x])^n)/(f^2*n^2), x] + (Dist[(b^2*(n - 1))/n, Int[(c + d*x)^m*(b*Sin[e + f*x])^(n - 2), x], x] - D
ist[(d^2*m*(m - 1))/(f^2*n^2), Int[(c + d*x)^(m - 2)*(b*Sin[e + f*x])^n, x], x] - Simp[(b*(c + d*x)^m*Cos[e +
f*x]*(b*Sin[e + f*x])^(n - 1))/(f*n), x]) /; FreeQ[{b, c, d, e, f}, x] && GtQ[n, 1] && GtQ[m, 1]

Rubi steps

\begin {align*} \int x^3 \sin ^3(x) \, dx &=-\frac {1}{3} x^3 \cos (x) \sin ^2(x)+\frac {1}{3} x^2 \sin ^3(x)+\frac {2}{3} \int x^3 \sin (x) \, dx-\frac {2}{3} \int x \sin ^3(x) \, dx\\ &=-\frac {2}{3} x^3 \cos (x)+\frac {2}{9} x \cos (x) \sin ^2(x)-\frac {1}{3} x^3 \cos (x) \sin ^2(x)-\frac {2 \sin ^3(x)}{27}+\frac {1}{3} x^2 \sin ^3(x)-\frac {4}{9} \int x \sin (x) \, dx+2 \int x^2 \cos (x) \, dx\\ &=\frac {4}{9} x \cos (x)-\frac {2}{3} x^3 \cos (x)+2 x^2 \sin (x)+\frac {2}{9} x \cos (x) \sin ^2(x)-\frac {1}{3} x^3 \cos (x) \sin ^2(x)-\frac {2 \sin ^3(x)}{27}+\frac {1}{3} x^2 \sin ^3(x)-\frac {4}{9} \int \cos (x) \, dx-4 \int x \sin (x) \, dx\\ &=\frac {40}{9} x \cos (x)-\frac {2}{3} x^3 \cos (x)-\frac {4 \sin (x)}{9}+2 x^2 \sin (x)+\frac {2}{9} x \cos (x) \sin ^2(x)-\frac {1}{3} x^3 \cos (x) \sin ^2(x)-\frac {2 \sin ^3(x)}{27}+\frac {1}{3} x^2 \sin ^3(x)-4 \int \cos (x) \, dx\\ &=\frac {40}{9} x \cos (x)-\frac {2}{3} x^3 \cos (x)-\frac {40 \sin (x)}{9}+2 x^2 \sin (x)+\frac {2}{9} x \cos (x) \sin ^2(x)-\frac {1}{3} x^3 \cos (x) \sin ^2(x)-\frac {2 \sin ^3(x)}{27}+\frac {1}{3} x^2 \sin ^3(x)\\ \end {align*}

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Mathematica [A]  time = 0.10, size = 51, normalized size = 0.70 \[ \frac {1}{108} \left (243 \left (x^2-2\right ) \sin (x)-\left (9 x^2-2\right ) \sin (3 x)-81 x \left (x^2-6\right ) \cos (x)+3 x \left (3 x^2-2\right ) \cos (3 x)\right ) \]

Antiderivative was successfully verified.

[In]

Integrate[x^3*Sin[x]^3,x]

[Out]

(-81*x*(-6 + x^2)*Cos[x] + 3*x*(-2 + 3*x^2)*Cos[3*x] + 243*(-2 + x^2)*Sin[x] - (-2 + 9*x^2)*Sin[3*x])/108

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IntegrateAlgebraic [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int x^3 \sin ^3(x) \, dx \]

Verification is Not applicable to the result.

[In]

IntegrateAlgebraic[x^3*Sin[x]^3,x]

[Out]

Could not integrate

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fricas [A]  time = 0.83, size = 52, normalized size = 0.71 \[ \frac {1}{9} \, {\left (3 \, x^{3} - 2 \, x\right )} \cos \relax (x)^{3} - \frac {1}{3} \, {\left (3 \, x^{3} - 14 \, x\right )} \cos \relax (x) - \frac {1}{27} \, {\left ({\left (9 \, x^{2} - 2\right )} \cos \relax (x)^{2} - 63 \, x^{2} + 122\right )} \sin \relax (x) \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^3*sin(x)^3,x, algorithm="fricas")

[Out]

1/9*(3*x^3 - 2*x)*cos(x)^3 - 1/3*(3*x^3 - 14*x)*cos(x) - 1/27*((9*x^2 - 2)*cos(x)^2 - 63*x^2 + 122)*sin(x)

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giac [A]  time = 0.61, size = 49, normalized size = 0.67 \[ \frac {1}{36} \, {\left (3 \, x^{3} - 2 \, x\right )} \cos \left (3 \, x\right ) - \frac {3}{4} \, {\left (x^{3} - 6 \, x\right )} \cos \relax (x) - \frac {1}{108} \, {\left (9 \, x^{2} - 2\right )} \sin \left (3 \, x\right ) + \frac {9}{4} \, {\left (x^{2} - 2\right )} \sin \relax (x) \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^3*sin(x)^3,x, algorithm="giac")

[Out]

1/36*(3*x^3 - 2*x)*cos(3*x) - 3/4*(x^3 - 6*x)*cos(x) - 1/108*(9*x^2 - 2)*sin(3*x) + 9/4*(x^2 - 2)*sin(x)

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maple [A]  time = 0.38, size = 50, normalized size = 0.68

method	result	size
risch	\(\left (-\frac {3}{4} x^{3}+\frac {9}{2} x \right ) \cos \relax (x )+\frac {9 \left (x^{2}-2\right ) \sin \relax (x )}{4}+\left (\frac {1}{12} x^{3}-\frac {1}{18} x \right ) \cos \left (3 x \right )-\frac {\left (9 x^{2}-2\right ) \sin \left (3 x \right )}{108}\)	\(50\)
default	\(-\frac {x^{3} \left (2+\sin ^{2}\relax (x )\right ) \cos \relax (x )}{3}+2 x^{2} \sin \relax (x )-\frac {40 \sin \relax (x )}{9}+4 x \cos \relax (x )+\frac {x^{2} \left (\sin ^{3}\relax (x )\right )}{3}+\frac {2 x \left (2+\sin ^{2}\relax (x )\right ) \cos \relax (x )}{9}-\frac {2 \left (\sin ^{3}\relax (x )\right )}{27}\)	\(57\)
norman	\(\frac {\frac {40 x}{9}-\frac {2 x^{3}}{3}-\frac {496 \left (\tan ^{3}\left (\frac {x}{2}\right )\right )}{27}-\frac {80 \left (\tan ^{5}\left (\frac {x}{2}\right )\right )}{9}+\frac {16 x \left (\tan ^{2}\left (\frac {x}{2}\right )\right )}{3}-\frac {16 x \left (\tan ^{4}\left (\frac {x}{2}\right )\right )}{3}-\frac {40 x \left (\tan ^{6}\left (\frac {x}{2}\right )\right )}{9}+4 x^{2} \tan \left (\frac {x}{2}\right )+\frac {32 x^{2} \left (\tan ^{3}\left (\frac {x}{2}\right )\right )}{3}+4 x^{2} \left (\tan ^{5}\left (\frac {x}{2}\right )\right )-2 x^{3} \left (\tan ^{2}\left (\frac {x}{2}\right )\right )+2 x^{3} \left (\tan ^{4}\left (\frac {x}{2}\right )\right )+\frac {2 x^{3} \left (\tan ^{6}\left (\frac {x}{2}\right )\right )}{3}-\frac {80 \tan \left (\frac {x}{2}\right )}{9}}{\left (1+\tan ^{2}\left (\frac {x}{2}\right )\right )^{3}}\)	\(134\)

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^3*sin(x)^3,x,method=_RETURNVERBOSE)

[Out]

(-3/4*x^3+9/2*x)*cos(x)+9/4*(x^2-2)*sin(x)+(1/12*x^3-1/18*x)*cos(3*x)-1/108*(9*x^2-2)*sin(3*x)

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maxima [A]  time = 0.46, size = 49, normalized size = 0.67 \[ \frac {1}{36} \, {\left (3 \, x^{3} - 2 \, x\right )} \cos \left (3 \, x\right ) - \frac {3}{4} \, {\left (x^{3} - 6 \, x\right )} \cos \relax (x) - \frac {1}{108} \, {\left (9 \, x^{2} - 2\right )} \sin \left (3 \, x\right ) + \frac {9}{4} \, {\left (x^{2} - 2\right )} \sin \relax (x) \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^3*sin(x)^3,x, algorithm="maxima")

[Out]

1/36*(3*x^3 - 2*x)*cos(3*x) - 3/4*(x^3 - 6*x)*cos(x) - 1/108*(9*x^2 - 2)*sin(3*x) + 9/4*(x^2 - 2)*sin(x)

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mupad [B]  time = 0.33, size = 59, normalized size = 0.81 \[ \frac {7\,x^2\,\sin \relax (x)}{3}-\frac {2\,x\,{\cos \relax (x)}^3}{9}-x^3\,\cos \relax (x)-\frac {122\,\sin \relax (x)}{27}+\frac {x^3\,{\cos \relax (x)}^3}{3}+\frac {2\,{\cos \relax (x)}^2\,\sin \relax (x)}{27}+\frac {14\,x\,\cos \relax (x)}{3}-\frac {x^2\,{\cos \relax (x)}^2\,\sin \relax (x)}{3} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^3*sin(x)^3,x)

[Out]

(7*x^2*sin(x))/3 - (2*x*cos(x)^3)/9 - x^3*cos(x) - (122*sin(x))/27 + (x^3*cos(x)^3)/3 + (2*cos(x)^2*sin(x))/27
+ (14*x*cos(x))/3 - (x^2*cos(x)^2*sin(x))/3

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sympy [A]  time = 2.04, size = 92, normalized size = 1.26 \[ - x^{3} \sin ^{2}{\relax (x )} \cos {\relax (x )} - \frac {2 x^{3} \cos ^{3}{\relax (x )}}{3} + \frac {7 x^{2} \sin ^{3}{\relax (x )}}{3} + 2 x^{2} \sin {\relax (x )} \cos ^{2}{\relax (x )} + \frac {14 x \sin ^{2}{\relax (x )} \cos {\relax (x )}}{3} + \frac {40 x \cos ^{3}{\relax (x )}}{9} - \frac {122 \sin ^{3}{\relax (x )}}{27} - \frac {40 \sin {\relax (x )} \cos ^{2}{\relax (x )}}{9} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x**3*sin(x)**3,x)

[Out]

-x**3*sin(x)**2*cos(x) - 2*x**3*cos(x)**3/3 + 7*x**2*sin(x)**3/3 + 2*x**2*sin(x)*cos(x)**2 + 14*x*sin(x)**2*co
s(x)/3 + 40*x*cos(x)**3/9 - 122*sin(x)**3/27 - 40*sin(x)*cos(x)**2/9

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