3.1.90 \(\int \frac {1+x^3}{x^6 \sqrt [4]{x+x^4}} \, dx\) [90]

Optimal. Leaf size=16 \[ -\frac {4 \left (x+x^4\right )^{7/4}}{21 x^7} \]

[Out]

-4/21*(x^4+x)^(7/4)/x^7

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Rubi [B] Leaf count is larger than twice the leaf count of optimal. \(33\) vs. \(2(16)=32\).
time = 0.07, antiderivative size = 33, normalized size of antiderivative = 2.06, number of steps used = 5, number of rules used = 3, integrand size = 18, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.167, Rules used = {2077, 2041, 2039} \begin {gather*} -\frac {4 \left (x^4+x\right )^{3/4}}{21 x^6}-\frac {4 \left (x^4+x\right )^{3/4}}{21 x^3} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[(1 + x^3)/(x^6*(x + x^4)^(1/4)),x]

[Out]

(-4*(x + x^4)^(3/4))/(21*x^6) - (4*(x + x^4)^(3/4))/(21*x^3)

Rule 2039

Int[((c_.)*(x_))^(m_.)*((a_.)*(x_)^(j_.) + (b_.)*(x_)^(n_.))^(p_), x_Symbol] :> Simp[(-c^(j - 1))*(c*x)^(m - j
+ 1)*((a*x^j + b*x^n)^(p + 1)/(a*(n - j)*(p + 1))), x] /; FreeQ[{a, b, c, j, m, n, p}, x] &&  !IntegerQ[p] &&
NeQ[n, j] && EqQ[m + n*p + n - j + 1, 0] && (IntegerQ[j] || GtQ[c, 0])

Rule 2041

Int[((c_.)*(x_))^(m_.)*((a_.)*(x_)^(j_.) + (b_.)*(x_)^(n_.))^(p_), x_Symbol] :> Simp[c^(j - 1)*(c*x)^(m - j +
1)*((a*x^j + b*x^n)^(p + 1)/(a*(m + j*p + 1))), x] - Dist[b*((m + n*p + n - j + 1)/(a*c^(n - j)*(m + j*p + 1))
), Int[(c*x)^(m + n - j)*(a*x^j + b*x^n)^p, x], x] /; FreeQ[{a, b, c, j, m, n, p}, x] &&  !IntegerQ[p] && NeQ[
n, j] && ILtQ[Simplify[(m + n*p + n - j + 1)/(n - j)], 0] && NeQ[m + j*p + 1, 0] && (IntegersQ[j, n] || GtQ[c,
0])

Rule 2077

Int[(Pq_)*((c_.)*(x_))^(m_.)*((a_.)*(x_)^(j_.) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> Int[ExpandIntegrand[(c*x)
^m*Pq*(a*x^j + b*x^n)^p, x], x] /; FreeQ[{a, b, c, j, m, n, p}, x] && (PolyQ[Pq, x] || PolyQ[Pq, x^n]) &&  !In
tegerQ[p] && NeQ[n, j]

Rubi steps

\begin {align*} \int \frac {1+x^3}{x^6 \sqrt [4]{x+x^4}} \, dx &=\int \left (\frac {1}{x^6 \sqrt [4]{x+x^4}}+\frac {1}{x^3 \sqrt [4]{x+x^4}}\right ) \, dx\\ &=\int \frac {1}{x^6 \sqrt [4]{x+x^4}} \, dx+\int \frac {1}{x^3 \sqrt [4]{x+x^4}} \, dx\\ &=-\frac {4 \left (x+x^4\right )^{3/4}}{21 x^6}-\frac {4 \left (x+x^4\right )^{3/4}}{9 x^3}-\frac {4}{7} \int \frac {1}{x^3 \sqrt [4]{x+x^4}} \, dx\\ &=-\frac {4 \left (x+x^4\right )^{3/4}}{21 x^6}-\frac {4 \left (x+x^4\right )^{3/4}}{21 x^3}\\ \end {align*}

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Mathematica [A]
time = 9.24, size = 21, normalized size = 1.31 \begin {gather*} -\frac {4 \left (1+x^3\right ) \left (x+x^4\right )^{3/4}}{21 x^6} \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[(1 + x^3)/(x^6*(x + x^4)^(1/4)),x]

[Out]

(-4*(1 + x^3)*(x + x^4)^(3/4))/(21*x^6)

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Maple [A]
time = 0.27, size = 18, normalized size = 1.12

method	result	size
trager	\(-\frac {4 \left (x^{3}+1\right ) \left (x^{4}+x \right )^{\frac {3}{4}}}{21 x^{6}}\)	\(18\)
risch	\(-\frac {4 \left (x^{6}+2 x^{3}+1\right )}{21 x^{5} \left (x \left (x^{3}+1\right )\right )^{\frac {1}{4}}}\)	\(25\)
gosper	\(-\frac {4 \left (1+x \right ) \left (x^{2}-x +1\right ) \left (x^{3}+1\right )}{21 x^{5} \left (x^{4}+x \right )^{\frac {1}{4}}}\)	\(29\)
meijerg	\(-\frac {4 \left (1-\frac {4 x^{3}}{3}\right ) \left (x^{3}+1\right )^{\frac {3}{4}}}{21 x^{\frac {21}{4}}}-\frac {4 \left (x^{3}+1\right )^{\frac {3}{4}}}{9 x^{\frac {9}{4}}}\)	\(33\)

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((x^3+1)/x^6/(x^4+x)^(1/4),x,method=_RETURNVERBOSE)

[Out]

-4/21/x^6*(x^3+1)*(x^4+x)^(3/4)

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Maxima [B] Leaf count of result is larger than twice the leaf count of optimal. 58 vs. \(2 (12) = 24\).
time = 0.48, size = 58, normalized size = 3.62 \begin {gather*} -\frac {4 \, {\left (x^{4} + x\right )}}{9 \, {\left (x^{2} - x + 1\right )}^{\frac {1}{4}} {\left (x + 1\right )}^{\frac {1}{4}} x^{\frac {13}{4}}} + \frac {4 \, {\left (4 \, x^{7} + x^{4} - 3 \, x\right )}}{63 \, {\left (x^{2} - x + 1\right )}^{\frac {1}{4}} {\left (x + 1\right )}^{\frac {1}{4}} x^{\frac {25}{4}}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((x^3+1)/x^6/(x^4+x)^(1/4),x, algorithm="maxima")

[Out]

-4/9*(x^4 + x)/((x^2 - x + 1)^(1/4)*(x + 1)^(1/4)*x^(13/4)) + 4/63*(4*x^7 + x^4 - 3*x)/((x^2 - x + 1)^(1/4)*(x
+ 1)^(1/4)*x^(25/4))

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Fricas [A]
time = 0.39, size = 17, normalized size = 1.06 \begin {gather*} -\frac {4 \, {\left (x^{4} + x\right )}^{\frac {3}{4}} {\left (x^{3} + 1\right )}}{21 \, x^{6}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((x^3+1)/x^6/(x^4+x)^(1/4),x, algorithm="fricas")

[Out]

-4/21*(x^4 + x)^(3/4)*(x^3 + 1)/x^6

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Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {\left (x + 1\right ) \left (x^{2} - x + 1\right )}{x^{6} \sqrt [4]{x \left (x + 1\right ) \left (x^{2} - x + 1\right )}}\, dx \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((x**3+1)/x**6/(x**4+x)**(1/4),x)

[Out]

Integral((x + 1)*(x**2 - x + 1)/(x**6*(x*(x + 1)*(x**2 - x + 1))**(1/4)), x)

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Giac [A]
time = 0.40, size = 9, normalized size = 0.56 \begin {gather*} -\frac {4}{21} \, {\left (\frac {1}{x^{3}} + 1\right )}^{\frac {7}{4}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((x^3+1)/x^6/(x^4+x)^(1/4),x, algorithm="giac")

[Out]

-4/21*(1/x^3 + 1)^(7/4)

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Mupad [B]
time = 0.27, size = 27, normalized size = 1.69 \begin {gather*} -\frac {4\,{\left (x^4+x\right )}^{3/4}+4\,x^3\,{\left (x^4+x\right )}^{3/4}}{21\,x^6} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((x^3 + 1)/(x^6*(x + x^4)^(1/4)),x)

[Out]

-(4*(x + x^4)^(3/4) + 4*x^3*(x + x^4)^(3/4))/(21*x^6)

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