3.3.51 \(\int x^3 (-1+x^2)^{3/4} \, dx\)

Optimal. Leaf size=25 \[ \frac {2}{77} \left (x^2-1\right )^{3/4} \left (7 x^4-3 x^2-4\right ) \]

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Rubi [A]  time = 0.01, antiderivative size = 27, normalized size of antiderivative = 1.08, number of steps used = 3, number of rules used = 2, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.154, Rules used = {266, 43} \begin {gather*} \frac {2}{11} \left (x^2-1\right )^{11/4}+\frac {2}{7} \left (x^2-1\right )^{7/4} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[x^3*(-1 + x^2)^(3/4),x]

[Out]

(2*(-1 + x^2)^(7/4))/7 + (2*(-1 + x^2)^(11/4))/11

Rule 43

Int[((a_.) + (b_.)*(x_))^(m_.)*((c_.) + (d_.)*(x_))^(n_.), x_Symbol] :> Int[ExpandIntegrand[(a + b*x)^m*(c + d
*x)^n, x], x] /; FreeQ[{a, b, c, d, n}, x] && NeQ[b*c - a*d, 0] && IGtQ[m, 0] && ( !IntegerQ[n] || (EqQ[c, 0]
&& LeQ[7*m + 4*n + 4, 0]) || LtQ[9*m + 5*(n + 1), 0] || GtQ[m + n + 2, 0])

Rule 266

Int[(x_)^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> Dist[1/n, Subst[Int[x^(Simplify[(m + 1)/n] - 1)*(a
+ b*x)^p, x], x, x^n], x] /; FreeQ[{a, b, m, n, p}, x] && IntegerQ[Simplify[(m + 1)/n]]

Rubi steps

\begin {align*} \int x^3 \left (-1+x^2\right )^{3/4} \, dx &=\frac {1}{2} \operatorname {Subst}\left (\int (-1+x)^{3/4} x \, dx,x,x^2\right )\\ &=\frac {1}{2} \operatorname {Subst}\left (\int \left ((-1+x)^{3/4}+(-1+x)^{7/4}\right ) \, dx,x,x^2\right )\\ &=\frac {2}{7} \left (-1+x^2\right )^{7/4}+\frac {2}{11} \left (-1+x^2\right )^{11/4}\\ \end {align*}

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Mathematica [A]  time = 0.01, size = 20, normalized size = 0.80 \begin {gather*} \frac {2}{77} \left (x^2-1\right )^{7/4} \left (7 x^2+4\right ) \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[x^3*(-1 + x^2)^(3/4),x]

[Out]

(2*(-1 + x^2)^(7/4)*(4 + 7*x^2))/77

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IntegrateAlgebraic [A]  time = 0.02, size = 20, normalized size = 0.80 \begin {gather*} \frac {2}{77} \left (-1+x^2\right )^{7/4} \left (4+7 x^2\right ) \end {gather*}

Antiderivative was successfully verified.

[In]

IntegrateAlgebraic[x^3*(-1 + x^2)^(3/4),x]

[Out]

(2*(-1 + x^2)^(7/4)*(4 + 7*x^2))/77

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fricas [A]  time = 0.44, size = 21, normalized size = 0.84 \begin {gather*} \frac {2}{77} \, {\left (7 \, x^{4} - 3 \, x^{2} - 4\right )} {\left (x^{2} - 1\right )}^{\frac {3}{4}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^3*(x^2-1)^(3/4),x, algorithm="fricas")

[Out]

2/77*(7*x^4 - 3*x^2 - 4)*(x^2 - 1)^(3/4)

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giac [A]  time = 0.53, size = 19, normalized size = 0.76 \begin {gather*} \frac {2}{11} \, {\left (x^{2} - 1\right )}^{\frac {11}{4}} + \frac {2}{7} \, {\left (x^{2} - 1\right )}^{\frac {7}{4}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^3*(x^2-1)^(3/4),x, algorithm="giac")

[Out]

2/11*(x^2 - 1)^(11/4) + 2/7*(x^2 - 1)^(7/4)

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maple [A]  time = 0.08, size = 21, normalized size = 0.84

method	result	size
trager	\(\left (\frac {2}{11} x^{4}-\frac {6}{77} x^{2}-\frac {8}{77}\right ) \left (x^{2}-1\right )^{\frac {3}{4}}\)	\(21\)
risch	\(\frac {2 \left (x^{2}-1\right )^{\frac {3}{4}} \left (7 x^{4}-3 x^{2}-4\right )}{77}\)	\(22\)
gosper	\(\frac {2 \left (-1+x \right ) \left (1+x \right ) \left (7 x^{2}+4\right ) \left (x^{2}-1\right )^{\frac {3}{4}}}{77}\)	\(23\)
meijerg	\(\frac {\mathrm {signum}\left (x^{2}-1\right )^{\frac {3}{4}} \hypergeom \left (\left [-\frac {3}{4}, 2\right ], \relax [3], x^{2}\right ) x^{4}}{4 \left (-\mathrm {signum}\left (x^{2}-1\right )\right )^{\frac {3}{4}}}\)	\(33\)

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^3*(x^2-1)^(3/4),x,method=_RETURNVERBOSE)

[Out]

(2/11*x^4-6/77*x^2-8/77)*(x^2-1)^(3/4)

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maxima [A]  time = 0.34, size = 19, normalized size = 0.76 \begin {gather*} \frac {2}{11} \, {\left (x^{2} - 1\right )}^{\frac {11}{4}} + \frac {2}{7} \, {\left (x^{2} - 1\right )}^{\frac {7}{4}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^3*(x^2-1)^(3/4),x, algorithm="maxima")

[Out]

2/11*(x^2 - 1)^(11/4) + 2/7*(x^2 - 1)^(7/4)

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mupad [B]  time = 0.19, size = 21, normalized size = 0.84 \begin {gather*} -{\left (x^2-1\right )}^{3/4}\,\left (-\frac {2\,x^4}{11}+\frac {6\,x^2}{77}+\frac {8}{77}\right ) \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^3*(x^2 - 1)^(3/4),x)

[Out]

-(x^2 - 1)^(3/4)*((6*x^2)/77 - (2*x^4)/11 + 8/77)

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sympy [A]  time = 0.76, size = 41, normalized size = 1.64 \begin {gather*} \frac {2 x^{4} \left (x^{2} - 1\right )^{\frac {3}{4}}}{11} - \frac {6 x^{2} \left (x^{2} - 1\right )^{\frac {3}{4}}}{77} - \frac {8 \left (x^{2} - 1\right )^{\frac {3}{4}}}{77} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x**3*(x**2-1)**(3/4),x)

[Out]

2*x**4*(x**2 - 1)**(3/4)/11 - 6*x**2*(x**2 - 1)**(3/4)/77 - 8*(x**2 - 1)**(3/4)/77

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