3.14.74 \(\int \frac {\sqrt [3]{-1+x^3} (-1+2 x^3)}{x^7} \, dx\) [1374]

Optimal. Leaf size=99 \[ \frac {\left (3-13 x^3\right ) \sqrt [3]{-1+x^3}}{18 x^6}-\frac {5 \text {ArcTan}\left (\frac {1}{\sqrt {3}}-\frac {2 \sqrt [3]{-1+x^3}}{\sqrt {3}}\right )}{9 \sqrt {3}}+\frac {5}{27} \log \left (1+\sqrt [3]{-1+x^3}\right )-\frac {5}{54} \log \left (1-\sqrt [3]{-1+x^3}+\left (-1+x^3\right )^{2/3}\right ) \]

[Out]

1/18*(-13*x^3+3)*(x^3-1)^(1/3)/x^6+5/27*arctan(-1/3*3^(1/2)+2/3*(x^3-1)^(1/3)*3^(1/2))*3^(1/2)+5/27*ln(1+(x^3-
1)^(1/3))-5/54*ln(1-(x^3-1)^(1/3)+(x^3-1)^(2/3))

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Rubi [A]
time = 0.03, antiderivative size = 84, normalized size of antiderivative = 0.85, number of steps used = 7, number of rules used = 7, integrand size = 20, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.350, Rules used = {457, 79, 43, 60, 632, 210, 31} \begin {gather*} -\frac {5 \text {ArcTan}\left (\frac {1-2 \sqrt [3]{x^3-1}}{\sqrt {3}}\right )}{9 \sqrt {3}}-\frac {5 \sqrt [3]{x^3-1}}{9 x^3}+\frac {5}{18} \log \left (\sqrt [3]{x^3-1}+1\right )-\frac {\left (x^3-1\right )^{4/3}}{6 x^6}-\frac {5 \log (x)}{18} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[((-1 + x^3)^(1/3)*(-1 + 2*x^3))/x^7,x]

[Out]

(-5*(-1 + x^3)^(1/3))/(9*x^3) - (-1 + x^3)^(4/3)/(6*x^6) - (5*ArcTan[(1 - 2*(-1 + x^3)^(1/3))/Sqrt[3]])/(9*Sqr
t[3]) - (5*Log[x])/18 + (5*Log[1 + (-1 + x^3)^(1/3)])/18

Rule 31

Int[((a_) + (b_.)*(x_))^(-1), x_Symbol] :> Simp[Log[RemoveContent[a + b*x, x]]/b, x] /; FreeQ[{a, b}, x]

Rule 43

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

Rule 60

Int[1/(((a_.) + (b_.)*(x_))*((c_.) + (d_.)*(x_))^(2/3)), x_Symbol] :> With[{q = Rt[-(b*c - a*d)/b, 3]}, Simp[-
Log[RemoveContent[a + b*x, x]]/(2*b*q^2), x] + (Dist[3/(2*b*q), Subst[Int[1/(q^2 - q*x + x^2), x], x, (c + d*x
)^(1/3)], x] + Dist[3/(2*b*q^2), Subst[Int[1/(q + x), x], x, (c + d*x)^(1/3)], x])] /; FreeQ[{a, b, c, d}, x]
&& NegQ[(b*c - a*d)/b]

Rule 79

Int[((a_.) + (b_.)*(x_))*((c_.) + (d_.)*(x_))^(n_.)*((e_.) + (f_.)*(x_))^(p_.), x_Symbol] :> Simp[(-(b*e - a*f
))*(c + d*x)^(n + 1)*((e + f*x)^(p + 1)/(f*(p + 1)*(c*f - d*e))), x] - Dist[(a*d*f*(n + p + 2) - b*(d*e*(n + 1
) + c*f*(p + 1)))/(f*(p + 1)*(c*f - d*e)), Int[(c + d*x)^n*(e + f*x)^(p + 1), x], x] /; FreeQ[{a, b, c, d, e,
f, n}, x] && LtQ[p, -1] && ( !LtQ[n, -1] || IntegerQ[p] ||  !(IntegerQ[n] ||  !(EqQ[e, 0] ||  !(EqQ[c, 0] || L
tQ[p, n]))))

Rule 210

Int[((a_) + (b_.)*(x_)^2)^(-1), x_Symbol] :> Simp[(-(Rt[-a, 2]*Rt[-b, 2])^(-1))*ArcTan[Rt[-b, 2]*(x/Rt[-a, 2])
], x] /; FreeQ[{a, b}, x] && PosQ[a/b] && (LtQ[a, 0] || LtQ[b, 0])

Rule 457

Int[(x_)^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_.)*((c_) + (d_.)*(x_)^(n_))^(q_.), x_Symbol] :> Dist[1/n, Subst[Int
[x^(Simplify[(m + 1)/n] - 1)*(a + b*x)^p*(c + d*x)^q, x], x, x^n], x] /; FreeQ[{a, b, c, d, m, n, p, q}, x] &&
NeQ[b*c - a*d, 0] && IntegerQ[Simplify[(m + 1)/n]]

Rule 632

Int[((a_.) + (b_.)*(x_) + (c_.)*(x_)^2)^(-1), x_Symbol] :> Dist[-2, Subst[Int[1/Simp[b^2 - 4*a*c - x^2, x], x]
, x, b + 2*c*x], x] /; FreeQ[{a, b, c}, x] && NeQ[b^2 - 4*a*c, 0]

Rubi steps

\begin {align*} \int \frac {\sqrt [3]{-1+x^3} \left (-1+2 x^3\right )}{x^7} \, dx &=\frac {1}{3} \text {Subst}\left (\int \frac {\sqrt [3]{-1+x} (-1+2 x)}{x^3} \, dx,x,x^3\right )\\ &=-\frac {\left (-1+x^3\right )^{4/3}}{6 x^6}+\frac {5}{9} \text {Subst}\left (\int \frac {\sqrt [3]{-1+x}}{x^2} \, dx,x,x^3\right )\\ &=-\frac {5 \sqrt [3]{-1+x^3}}{9 x^3}-\frac {\left (-1+x^3\right )^{4/3}}{6 x^6}+\frac {5}{27} \text {Subst}\left (\int \frac {1}{(-1+x)^{2/3} x} \, dx,x,x^3\right )\\ &=-\frac {5 \sqrt [3]{-1+x^3}}{9 x^3}-\frac {\left (-1+x^3\right )^{4/3}}{6 x^6}-\frac {5 \log (x)}{18}+\frac {5}{18} \text {Subst}\left (\int \frac {1}{1+x} \, dx,x,\sqrt [3]{-1+x^3}\right )+\frac {5}{18} \text {Subst}\left (\int \frac {1}{1-x+x^2} \, dx,x,\sqrt [3]{-1+x^3}\right )\\ &=-\frac {5 \sqrt [3]{-1+x^3}}{9 x^3}-\frac {\left (-1+x^3\right )^{4/3}}{6 x^6}-\frac {5 \log (x)}{18}+\frac {5}{18} \log \left (1+\sqrt [3]{-1+x^3}\right )-\frac {5}{9} \text {Subst}\left (\int \frac {1}{-3-x^2} \, dx,x,-1+2 \sqrt [3]{-1+x^3}\right )\\ &=-\frac {5 \sqrt [3]{-1+x^3}}{9 x^3}-\frac {\left (-1+x^3\right )^{4/3}}{6 x^6}-\frac {5 \tan ^{-1}\left (\frac {1-2 \sqrt [3]{-1+x^3}}{\sqrt {3}}\right )}{9 \sqrt {3}}-\frac {5 \log (x)}{18}+\frac {5}{18} \log \left (1+\sqrt [3]{-1+x^3}\right )\\ \end {align*}

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Mathematica [A]
time = 0.10, size = 92, normalized size = 0.93 \begin {gather*} \frac {1}{54} \left (\frac {3 \left (3-13 x^3\right ) \sqrt [3]{-1+x^3}}{x^6}-10 \sqrt {3} \text {ArcTan}\left (\frac {1-2 \sqrt [3]{-1+x^3}}{\sqrt {3}}\right )+10 \log \left (1+\sqrt [3]{-1+x^3}\right )-5 \log \left (1-\sqrt [3]{-1+x^3}+\left (-1+x^3\right )^{2/3}\right )\right ) \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[((-1 + x^3)^(1/3)*(-1 + 2*x^3))/x^7,x]

[Out]

((3*(3 - 13*x^3)*(-1 + x^3)^(1/3))/x^6 - 10*Sqrt[3]*ArcTan[(1 - 2*(-1 + x^3)^(1/3))/Sqrt[3]] + 10*Log[1 + (-1
+ x^3)^(1/3)] - 5*Log[1 - (-1 + x^3)^(1/3) + (-1 + x^3)^(2/3)])/54

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Maple [C] Result contains higher order function than in optimal. Order 9 vs. order 3.
time = 2.79, size = 91, normalized size = 0.92

method	result	size
risch	\(-\frac {13 x^{6}-16 x^{3}+3}{18 x^{6} \left (x^{3}-1\right )^{\frac {2}{3}}}+\frac {5 \left (-\mathrm {signum}\left (x^{3}-1\right )\right )^{\frac {2}{3}} \left (\frac {2 \Gamma \left (\frac {2}{3}\right ) x^{3} \hypergeom \left (\left [1, 1, \frac {5}{3}\right ], \left [2, 2\right ], x^{3}\right )}{3}+\left (\frac {\pi \sqrt {3}}{6}-\frac {3 \ln \left (3\right )}{2}+3 \ln \left (x \right )+i \pi \right ) \Gamma \left (\frac {2}{3}\right )\right )}{27 \Gamma \left (\frac {2}{3}\right ) \mathrm {signum}\left (x^{3}-1\right )^{\frac {2}{3}}}\)	\(91\)
meijerg	\(\frac {2 \mathrm {signum}\left (x^{3}-1\right )^{\frac {1}{3}} \left (-\frac {\Gamma \left (\frac {2}{3}\right ) x^{3} \hypergeom \left (\left [1, 1, \frac {5}{3}\right ], \left [2, 3\right ], x^{3}\right )}{3}-\left (\frac {\pi \sqrt {3}}{6}-\frac {3 \ln \left (3\right )}{2}-1+3 \ln \left (x \right )+i \pi \right ) \Gamma \left (\frac {2}{3}\right )-\frac {3 \Gamma \left (\frac {2}{3}\right )}{x^{3}}\right )}{9 \Gamma \left (\frac {2}{3}\right ) \left (-\mathrm {signum}\left (x^{3}-1\right )\right )^{\frac {1}{3}}}+\frac {\mathrm {signum}\left (x^{3}-1\right )^{\frac {1}{3}} \left (\frac {5 \Gamma \left (\frac {2}{3}\right ) x^{3} \hypergeom \left (\left [1, 1, \frac {8}{3}\right ], \left [2, 4\right ], x^{3}\right )}{27}+\frac {\left (\frac {\pi \sqrt {3}}{6}-\frac {3 \ln \left (3\right )}{2}+3 \ln \left (x \right )+i \pi \right ) \Gamma \left (\frac {2}{3}\right )}{3}+\frac {3 \Gamma \left (\frac {2}{3}\right )}{2 x^{6}}-\frac {\Gamma \left (\frac {2}{3}\right )}{x^{3}}\right )}{9 \Gamma \left (\frac {2}{3}\right ) \left (-\mathrm {signum}\left (x^{3}-1\right )\right )^{\frac {1}{3}}}\)	\(156\)
trager	\(-\frac {\left (13 x^{3}-3\right ) \left (x^{3}-1\right )^{\frac {1}{3}}}{18 x^{6}}+\frac {5 \ln \left (\frac {-864256 \RootOf \left (4096 \textit {\_Z}^{2}+64 \textit {\_Z} +1\right )^{2} x^{3}-200064 \RootOf \left (4096 \textit {\_Z}^{2}+64 \textit {\_Z} +1\right ) x^{3}+352128 \RootOf \left (4096 \textit {\_Z}^{2}+64 \textit {\_Z} +1\right ) \left (x^{3}-1\right )^{\frac {2}{3}}-11543 x^{3}-14247 \left (x^{3}-1\right )^{\frac {2}{3}}+1263936 \left (x^{3}-1\right )^{\frac {1}{3}} \RootOf \left (4096 \textit {\_Z}^{2}+64 \textit {\_Z} +1\right )+6914048 \RootOf \left (4096 \textit {\_Z}^{2}+64 \textit {\_Z} +1\right )^{2}+5502 \left (x^{3}-1\right )^{\frac {1}{3}}+1019840 \RootOf \left (4096 \textit {\_Z}^{2}+64 \textit {\_Z} +1\right )+21437}{x^{3}}\right )}{27}-\frac {5 \ln \left (-\frac {-6754304 \RootOf \left (4096 \textit {\_Z}^{2}+64 \textit {\_Z} +1\right )^{2} x^{3}+619712 \RootOf \left (4096 \textit {\_Z}^{2}+64 \textit {\_Z} +1\right ) x^{3}+352128 \RootOf \left (4096 \textit {\_Z}^{2}+64 \textit {\_Z} +1\right ) \left (x^{3}-1\right )^{\frac {2}{3}}+1266 x^{3}+19749 \left (x^{3}-1\right )^{\frac {2}{3}}-911808 \left (x^{3}-1\right )^{\frac {1}{3}} \RootOf \left (4096 \textit {\_Z}^{2}+64 \textit {\_Z} +1\right )[phone] \RootOf \left (4096 \textit {\_Z}^{2}+64 \textit {\_Z} +1\right )^{2}+5502 \left (x^{3}-1\right )^{\frac {1}{3}}-419648 \RootOf \left (4096 \textit {\_Z}^{2}+64 \textit {\_Z} +1\right )-1055}{x^{3}}\right )}{27}-\frac {320 \ln \left (-\frac {-6754304 \RootOf \left (4096 \textit {\_Z}^{2}+64 \textit {\_Z} +1\right )^{2} x^{3}+619712 \RootOf \left (4096 \textit {\_Z}^{2}+64 \textit {\_Z} +1\right ) x^{3}+352128 \RootOf \left (4096 \textit {\_Z}^{2}+64 \textit {\_Z} +1\right ) \left (x^{3}-1\right )^{\frac {2}{3}}+1266 x^{3}+19749 \left (x^{3}-1\right )^{\frac {2}{3}}-911808 \left (x^{3}-1\right )^{\frac {1}{3}} \RootOf \left (4096 \textit {\_Z}^{2}+64 \textit {\_Z} +1\right )[phone] \RootOf \left (4096 \textit {\_Z}^{2}+64 \textit {\_Z} +1\right )^{2}+5502 \left (x^{3}-1\right )^{\frac {1}{3}}-419648 \RootOf \left (4096 \textit {\_Z}^{2}+64 \textit {\_Z} +1\right )-1055}{x^{3}}\right ) \RootOf \left (4096 \textit {\_Z}^{2}+64 \textit {\_Z} +1\right )}{27}\)	\(436\)

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((x^3-1)^(1/3)*(2*x^3-1)/x^7,x,method=_RETURNVERBOSE)

[Out]

-1/18*(13*x^6-16*x^3+3)/x^6/(x^3-1)^(2/3)+5/27/GAMMA(2/3)/signum(x^3-1)^(2/3)*(-signum(x^3-1))^(2/3)*(2/3*GAMM
A(2/3)*x^3*hypergeom([1,1,5/3],[2,2],x^3)+(1/6*Pi*3^(1/2)-3/2*ln(3)+3*ln(x)+I*Pi)*GAMMA(2/3))

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Maxima [A]
time = 0.46, size = 103, normalized size = 1.04 \begin {gather*} \frac {5}{27} \, \sqrt {3} \arctan \left (\frac {1}{3} \, \sqrt {3} {\left (2 \, {\left (x^{3} - 1\right )}^{\frac {1}{3}} - 1\right )}\right ) - \frac {{\left (x^{3} - 1\right )}^{\frac {4}{3}} - 2 \, {\left (x^{3} - 1\right )}^{\frac {1}{3}}}{18 \, {\left (2 \, x^{3} + {\left (x^{3} - 1\right )}^{2} - 1\right )}} - \frac {2 \, {\left (x^{3} - 1\right )}^{\frac {1}{3}}}{3 \, x^{3}} - \frac {5}{54} \, \log \left ({\left (x^{3} - 1\right )}^{\frac {2}{3}} - {\left (x^{3} - 1\right )}^{\frac {1}{3}} + 1\right ) + \frac {5}{27} \, \log \left ({\left (x^{3} - 1\right )}^{\frac {1}{3}} + 1\right ) \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((x^3-1)^(1/3)*(2*x^3-1)/x^7,x, algorithm="maxima")

[Out]

5/27*sqrt(3)*arctan(1/3*sqrt(3)*(2*(x^3 - 1)^(1/3) - 1)) - 1/18*((x^3 - 1)^(4/3) - 2*(x^3 - 1)^(1/3))/(2*x^3 +
(x^3 - 1)^2 - 1) - 2/3*(x^3 - 1)^(1/3)/x^3 - 5/54*log((x^3 - 1)^(2/3) - (x^3 - 1)^(1/3) + 1) + 5/27*log((x^3
- 1)^(1/3) + 1)

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Fricas [A]
time = 0.35, size = 88, normalized size = 0.89 \begin {gather*} \frac {10 \, \sqrt {3} x^{6} \arctan \left (\frac {2}{3} \, \sqrt {3} {\left (x^{3} - 1\right )}^{\frac {1}{3}} - \frac {1}{3} \, \sqrt {3}\right ) - 5 \, x^{6} \log \left ({\left (x^{3} - 1\right )}^{\frac {2}{3}} - {\left (x^{3} - 1\right )}^{\frac {1}{3}} + 1\right ) + 10 \, x^{6} \log \left ({\left (x^{3} - 1\right )}^{\frac {1}{3}} + 1\right ) - 3 \, {\left (13 \, x^{3} - 3\right )} {\left (x^{3} - 1\right )}^{\frac {1}{3}}}{54 \, x^{6}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((x^3-1)^(1/3)*(2*x^3-1)/x^7,x, algorithm="fricas")

[Out]

1/54*(10*sqrt(3)*x^6*arctan(2/3*sqrt(3)*(x^3 - 1)^(1/3) - 1/3*sqrt(3)) - 5*x^6*log((x^3 - 1)^(2/3) - (x^3 - 1)
^(1/3) + 1) + 10*x^6*log((x^3 - 1)^(1/3) + 1) - 3*(13*x^3 - 3)*(x^3 - 1)^(1/3))/x^6

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Sympy [C] Result contains complex when optimal does not.
time = 114.60, size = 68, normalized size = 0.69 \begin {gather*} - \frac {2 \Gamma \left (\frac {2}{3}\right ) {{}_{2}F_{1}\left (\begin {matrix} - \frac {1}{3}, \frac {2}{3} \\ \frac {5}{3} \end {matrix}\middle | {\frac {e^{2 i \pi }}{x^{3}}} \right )}}{3 x^{2} \Gamma \left (\frac {5}{3}\right )} + \frac {\Gamma \left (\frac {5}{3}\right ) {{}_{2}F_{1}\left (\begin {matrix} - \frac {1}{3}, \frac {5}{3} \\ \frac {8}{3} \end {matrix}\middle | {\frac {e^{2 i \pi }}{x^{3}}} \right )}}{3 x^{5} \Gamma \left (\frac {8}{3}\right )} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((x**3-1)**(1/3)*(2*x**3-1)/x**7,x)

[Out]

-2*gamma(2/3)*hyper((-1/3, 2/3), (5/3,), exp_polar(2*I*pi)/x**3)/(3*x**2*gamma(5/3)) + gamma(5/3)*hyper((-1/3,
5/3), (8/3,), exp_polar(2*I*pi)/x**3)/(3*x**5*gamma(8/3))

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Giac [A]
time = 0.41, size = 81, normalized size = 0.82 \begin {gather*} \frac {5}{27} \, \sqrt {3} \arctan \left (\frac {1}{3} \, \sqrt {3} {\left (2 \, {\left (x^{3} - 1\right )}^{\frac {1}{3}} - 1\right )}\right ) - \frac {13 \, {\left (x^{3} - 1\right )}^{\frac {4}{3}} + 10 \, {\left (x^{3} - 1\right )}^{\frac {1}{3}}}{18 \, x^{6}} - \frac {5}{54} \, \log \left ({\left (x^{3} - 1\right )}^{\frac {2}{3}} - {\left (x^{3} - 1\right )}^{\frac {1}{3}} + 1\right ) + \frac {5}{27} \, \log \left ({\left | {\left (x^{3} - 1\right )}^{\frac {1}{3}} + 1 \right |}\right ) \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((x^3-1)^(1/3)*(2*x^3-1)/x^7,x, algorithm="giac")

[Out]

5/27*sqrt(3)*arctan(1/3*sqrt(3)*(2*(x^3 - 1)^(1/3) - 1)) - 1/18*(13*(x^3 - 1)^(4/3) + 10*(x^3 - 1)^(1/3))/x^6
- 5/54*log((x^3 - 1)^(2/3) - (x^3 - 1)^(1/3) + 1) + 5/27*log(abs((x^3 - 1)^(1/3) + 1))

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Mupad [B]
time = 1.20, size = 187, normalized size = 1.89 \begin {gather*} \frac {2\,\ln \left (\frac {4\,{\left (x^3-1\right )}^{1/3}}{9}+\frac {4}{9}\right )}{9}-\frac {\ln \left (\frac {{\left (x^3-1\right )}^{1/3}}{81}+\frac {1}{81}\right )}{27}+\frac {\frac {{\left (x^3-1\right )}^{1/3}}{9}-\frac {{\left (x^3-1\right )}^{4/3}}{18}}{{\left (x^3-1\right )}^2+2\,x^3-1}-\frac {2\,{\left (x^3-1\right )}^{1/3}}{3\,x^3}-\ln \left (1-2\,{\left (x^3-1\right )}^{1/3}+\sqrt {3}\,1{}\mathrm {i}\right )\,\left (\frac {1}{9}+\frac {\sqrt {3}\,1{}\mathrm {i}}{9}\right )+\ln \left (2\,{\left (x^3-1\right )}^{1/3}-1+\sqrt {3}\,1{}\mathrm {i}\right )\,\left (-\frac {1}{9}+\frac {\sqrt {3}\,1{}\mathrm {i}}{9}\right )+\ln \left (\frac {1}{6}-\frac {{\left (x^3-1\right )}^{1/3}}{3}+\frac {\sqrt {3}\,1{}\mathrm {i}}{6}\right )\,\left (\frac {1}{54}+\frac {\sqrt {3}\,1{}\mathrm {i}}{54}\right )-\ln \left (\frac {{\left (x^3-1\right )}^{1/3}}{3}-\frac {1}{6}+\frac {\sqrt {3}\,1{}\mathrm {i}}{6}\right )\,\left (-\frac {1}{54}+\frac {\sqrt {3}\,1{}\mathrm {i}}{54}\right ) \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(((x^3 - 1)^(1/3)*(2*x^3 - 1))/x^7,x)

[Out]

(2*log((4*(x^3 - 1)^(1/3))/9 + 4/9))/9 - log((x^3 - 1)^(1/3)/81 + 1/81)/27 + ((x^3 - 1)^(1/3)/9 - (x^3 - 1)^(4
/3)/18)/((x^3 - 1)^2 + 2*x^3 - 1) - (2*(x^3 - 1)^(1/3))/(3*x^3) - log(3^(1/2)*1i - 2*(x^3 - 1)^(1/3) + 1)*((3^
(1/2)*1i)/9 + 1/9) + log(3^(1/2)*1i + 2*(x^3 - 1)^(1/3) - 1)*((3^(1/2)*1i)/9 - 1/9) + log((3^(1/2)*1i)/6 - (x^
3 - 1)^(1/3)/3 + 1/6)*((3^(1/2)*1i)/54 + 1/54) - log((3^(1/2)*1i)/6 + (x^3 - 1)^(1/3)/3 - 1/6)*((3^(1/2)*1i)/5
4 - 1/54)

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